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Fields present
victoriamorris edited this page Jan 5, 2025
·
1 revision
The table below lists all fields found in BLL01, along with:
- The number of records in which the field is found
- The total number of instances of the field
Invalid field tags are marked with a red exclamation mark ❗
Table of fields (click to expand)
| Field tag | Name | Type | Obsolete? | Number of records | Number of fields |
|---|---|---|---|---|---|
| 001 | Control Number | Control field | 20436613 | 20436613 | |
| 008 | Fixed Length Data Elements | Control field | 20436564 | 20436564 | |
| 010 | Library of Congress Control Number | Data field | 1490397 | 1490462 | |
| 011 | Linking Library of Congress Control Number | Data field | obsolete | 1 | 1 |
| 012 ❗ | ❗ INVALID FIELD TAG | 137 | 137 | ||
| 013 | Patent Control Information | Data field | 8 | 8 | |
| 015 | National Bibliography Number | Data field | 5476643 | 5478428 | |
| 016 | National Bibliographic Agency Control Number | Data field | 2379338 | 2386538 | |
| 017 | Copyright or Legal Deposit Number | Data field | 1223 | 1248 | |
| 018 | Copyright Article-Fee Code | Data field | 1 | 1 | |
| 019 | Legacy Control Number | Data field | 12860740 | 17578148 | |
| 020 | International Standard Book Number | Data field | 9059922 | 13908246 | |
| 021 ❗ | ❗ INVALID FIELD TAG | 14 | 14 | ||
| 022 | International Standard Serial Number | Data field | 357032 | 357078 | |
| 024 | Other Standard Identifier | Data field | 294147 | 318872 | |
| 025 | Overseas Acquisition Number | Data field | 22870 | 22879 | |
| 026 | Fingerprint Identifier | Data field | 165 | 165 | |
| 027 | Standard Technical Report Number | Data field | 1448 | 1514 | |
| 028 | Publisher or Distributor Number | Data field | 244887 | 326205 | |
| 029 ❗ | ❗ INVALID FIELD TAG | 1582 | 2063 | ||
| 030 | CODEN Designation | Data field | 4442 | 4456 | |
| 031 | Musical Incipits Information | Data field | 7 | 7 | |
| 032 | Postal Registration Number | Data field | 1312 | 1312 | |
| 046 | Special Coded Dates | Data field | 4888 | 4909 | |
| 047 | Form of Musical Composition Code | Data field | 1174 | 1178 | |
| 048 | Number of Musical Instruments or Voices Code | Data field | 8757 | 10100 | |
| 049 ❗ | ❗ INVALID FIELD TAG | 1714 | 1755 | ||
| 050 | Library of Congress Call Number | Data field | 2044167 | 2084157 | |
| 051 | Library of Congress Copy, Issue, Offprint Statement | Data field | 450 | 476 | |
| 052 | Geographic Classification | Data field | 243474 | 254664 | |
| 088 | Report Number | Data field | 67699 | 72198 | |
| 090 | Local Call Number | Data field | obsolete | 8331 | 8621 |
| 091 | Previous Control Number (Document Supply Conference) | Data field | obsolete | 206257 | 206315 |
| 092 ❗ | ❗ INVALID FIELD TAG | 124 | 124 | ||
| 095 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 096 ❗ | ❗ INVALID FIELD TAG | 29 | 30 | ||
| 097 ❗ | ❗ INVALID FIELD TAG | 20 | 20 | ||
| 098 ❗ | ❗ INVALID FIELD TAG | 12 | 12 | ||
| 099 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 100 | Main Entry - Personal Name | Data field | 13556026 | 13556163 | |
| 101 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 102 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 110 | Main Entry - Corporate Name | Data field | 1315311 | 1315318 | |
| 111 | Main Entry - Meeting Name | Data field | 212865 | 212865 | |
| 112 ❗ | ❗ INVALID FIELD TAG | 5 | 5 | ||
| 114 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 120 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 130 | Main Entry - Uniform Title | Data field | 189961 | 189963 | |
| 143 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 146 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 150 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 151 ❗ | ❗ INVALID FIELD TAG | 5 | 5 | ||
| 160 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 161 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 169 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 170 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 180 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 201 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 202 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 205 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 210 | Abbreviated Title | Data field | 89974 | 90137 | |
| 220 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 222 | Key Title | Data field | 209391 | 209416 | |
| 225 ❗ | ❗ INVALID FIELD TAG | 7 | 7 | ||
| 230 ❗ | ❗ INVALID FIELD TAG | 11 | 11 | ||
| 234 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 236 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 240 | Uniform Title | Data field | 1023244 | 1023310 | |
| 241 | Romanized Title | Data field | obsolete | 2 | 2 |
| 242 | Translation of Title by Cataloging Agency | Data field | 5780 | 5987 | |
| 243 | Collective Uniform Title | Data field | 679 | 681 | |
| 245 | Title Statement | Data field | 20435871 | 20435911 | |
| 246 | Varying Form of Title | Data field | 862707 | 1077191 | |
| 247 | Former Title | Data field | 987 | 1230 | |
| 248 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 249 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 250 | Edition Statement | Data field | 1657007 | 1662809 | |
| 251 | Version Information | Data field | 6 | 6 | |
| 254 | Musical Presentation Statement | Data field | 9936 | 9936 | |
| 263 | Projected Publication Date | Data field | 794292 | 794299 | |
| 264 | Production, Publication, Distribution, Manufacture, and Copyright Notice | Data field | 8791535 | 9301335 | |
| 265 | Source for Acquisition/Subscription Address | Data field | obsolete | 44 | 44 |
| 266 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 269 ❗ | ❗ INVALID FIELD TAG | 357 | 357 | ||
| 270 | Address | Data field | 29 | 30 | |
| 288 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 294 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 299 ❗ | ❗ INVALID FIELD TAG | 24 | 24 | ||
| 300 | Physical Description | Data field | 16673597 | 16685786 | |
| 301 | Physical Description for Films | Data field | obsolete | 1 | 1 |
| 306 | Playing Time | Data field | 4833 | 4833 | |
| 307 | Hours, Etc. | Data field | 2 | 2 | |
| 310 | Current Publication Frequency | Data field | 281842 | 282172 | |
| 315 | Frequency | Data field | obsolete | 3 | 3 |
| 321 | Former Publication Frequency | Data field | 18079 | 24412 | |
| 326 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 330 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 334 | Mode of Issuance | Data field | 4 | 4 | |
| 335 | Extension Plan | Data field | 2 | 2 | |
| 336 | Content Type | Data field | 20187952 | 21002443 | |
| 351 | Organization and Arrangement of Materials | Data field | 103 | 103 | |
| 352 | Digital Graphic Representation | Data field | 67 | 67 | |
| 353 | Supplementary Content Characteristics | Data field | 1 | 1 | |
| 360 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 362 | Dates of Publication and/or Sequential Designation | Data field | 274872 | 290848 | |
| 363 | Normalized Date and Sequential Designation | Data field | 20 | 20 | |
| 364 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 365 | Trade Price | Data field | 43365 | 43367 | |
| 366 | Trade Availability Information | Data field | 254826 | 254830 | |
| 370 | Associated Place | Data field | 74 | 75 | |
| 385 | Audience Characteristics | Data field | 97 | 123 | |
| 386 | Creator/Contributor Characteristics | Data field | 1075 | 2150 | |
| 388 | Time Period of Creation | Data field | 72 | 85 | |
| 393 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 400 | Series Statement/Added Entry - Personal Name | Data field | obsolete | 28 | 29 |
| 407 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 410 | Series Statement/Added Entry - Corporate Name | Data field | obsolete | 184 | 185 |
| 411 | Series Statement/Added Entry - Meeting Name | Data field | obsolete | 1 | 1 |
| 430 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 435 ❗ | ❗ INVALID FIELD TAG | 186 | 186 | ||
| 440 | Series Statement/Added Entry - Title | Data field | obsolete | 3 | 3 |
| 449 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 450 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 460 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 488 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 489 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 490 | Series Statement | Data field | 4528527 | 4763224 | |
| 491 ❗ | ❗ INVALID FIELD TAG | 11 | 11 | ||
| 499 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 500 | General Note | Data field | 5766165 | 8061359 | |
| 501 | With Note | Data field | 3775 | 3856 | |
| 502 | Dissertation Note | Data field | 666118 | 666339 | |
| 515 | Numbering Peculiarities Note | Data field | 29481 | 33990 | |
| 516 | Type of Computer File or Data Note | Data field | 25430 | 25503 | |
| 518 | Date/Time and Place of an Event Note | Data field | 479 | 593 | |
| 519 ❗ | ❗ INVALID FIELD TAG | 1813 | 1882 | ||
| 520 | Summary, Etc. | Data field | 325287 | 337810 | |
| 521 | Target Audience Note | Data field | 30641 | 36990 | |
| 522 | Geographic Coverage Note | Data field | 1349 | 1352 | |
| 524 | Preferred Citation of Described Materials Note | Data field | 19759 | 30582 | |
| 525 | Supplement Note | Data field | 5120 | 5312 | |
| 526 | Study Program Information Note | Data field | 24 | 36 | |
| 530 | Additional Physical Form Available Note | Data field | 315561 | 317472 | |
| 531 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 532 | Accessibility Note | Data field | 1 | 1 | |
| 533 | Reproduction Note | Data field | 30044 | 30212 | |
| 534 | Original Version Note | Data field | 52944 | 52981 | |
| 546 | Language Note | Data field | 608905 | 621257 | |
| 547 | Former Title Complexity Note | Data field | 56 | 56 | |
| 550 | Issuing Body Note | Data field | 22158 | 22965 | |
| 551 ❗ | ❗ INVALID FIELD TAG | 3 | 4 | ||
| 552 | Entity and Attribute Information Note | Data field | 3 | 3 | |
| 553 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 555 | Cumulative Index/Finding Aids Note | Data field | 8960 | 9210 | |
| 556 | Information about Documentation Note | Data field | 47 | 47 | |
| 557 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 560 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 561 | Ownership and Custodial History | Data field | 27352 | 28724 | |
| 562 | Copy and Version Identification Note | Data field | 16437 | 16684 | |
| 563 | Binding Information | Data field | 2383 | 2416 | |
| 564 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 565 | Case File Characteristics Note | Data field | 2 | 2 | |
| 580 | Linking Entry Complexity Note | Data field | 493275 | 539297 | |
| 581 | Publications About Described Materials Note | Data field | 2016 | 2110 | |
| 585 | Exhibitions Note | Data field | 3898 | 4662 | |
| 586 | Awards Note | Data field | 2832 | 2898 | |
| 588 | Source of Description Note | Data field | 833116 | 866141 | |
| 589 ❗ | ❗ INVALID FIELD TAG | 7 | 7 | ||
| 590 | Document Supply General Note | Data field | obsolete | 328804 | 342656 |
| 591 | Document Supply Conference Note | Data field | 342855 | 350439 | |
| 592 | Collaboration Note | Data field | 53 | 69 | |
| 593 ❗ | ❗ INVALID FIELD TAG | 40 | 40 | ||
| 594 | Reference to Items in Printed Catalogues | Data field | 1255 | 1255 | |
| 595 | Document Supply Bibliographic History Note | Data field | 371034 | 371413 | |
| 596 | Temporary Note | Data field | 2 | 2 | |
| 597 | Editing or Error Message - Bibliographic (Migration) | Data field | obsolete | 714542 | 723779 |
| 598 | Document Supply Selection / Ordering Information | Data field | 103487 | 103632 | |
| 599 | Notes Relating to an Original (RPS) | Data field | obsolete | 2428 | 2735 |
| 600 | Subject Added Entry - Personal Name | Data field | 1204103 | 1596478 | |
| 602 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 606 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 610 | Subject Added Entry - Corporate Name | Data field | 613876 | 750733 | |
| 611 | Subject Added Entry - Meeting Name | Data field | 27463 | 30975 | |
| 612 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 615 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 620 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 623 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 624 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 625 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 626 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 627 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 628 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 629 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 630 | Subject Added Entry - Uniform Title | Data field | 154015 | 198518 | |
| 631 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 632 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 633 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 634 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 635 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 636 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 637 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 638 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 639 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 640 ❗ | ❗ INVALID FIELD TAG | 4 | 4 | ||
| 641 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 642 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 643 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 644 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 645 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 646 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 647 | Subject Added Entry - Named Event | Data field | 6726 | 7600 | |
| 648 | Subject Added Entry - Chronological Term | Data field | 100654 | 102126 | |
| 649 ❗ | ❗ INVALID FIELD TAG | 5 | 5 | ||
| 650 | Subject Added Entry - Topical Term | Data field | 7483938 | 18830732 | |
| 651 | Subject Added Entry - Geographic Name | Data field | 2078565 | 3176832 | |
| 652 | Subject Added Entry - Reversed Geographic | Data field | obsolete | 30 | 30 |
| 656 | Index Term - Occupation | Data field | 17 | 17 | |
| 657 | Index Term - Function | Data field | 27 | 27 | |
| 658 | Index Term - Curriculum Objective | Data field | 61 | 98 | |
| 659 ❗ | ❗ INVALID FIELD TAG | 4 | 4 | ||
| 660 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 661 ❗ | ❗ INVALID FIELD TAG | 5 | 5 | ||
| 662 | Subject Added Entry - Hierarchical Place Name | Data field | 1971 | 3356 | |
| 664 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 666 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 670 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 687 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 690 | Collection Subset | Data field | 976319 | 1050845 | |
| 691 ❗ | ❗ INVALID FIELD TAG | 4 | 5 | ||
| 695 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 696 ❗ | ❗ INVALID FIELD TAG | 1 | 2 | ||
| 698 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 699 ❗ | ❗ INVALID FIELD TAG | 42 | 58 | ||
| 700 | Added Entry - Personal Name | Data field | 5759675 | 8717263 | |
| 701 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 710 | Added Entry - Corporate Name | Data field | 3081448 | 3607806 | |
| 711 | Added Entry - Meeting Name | Data field | 48190 | 53538 | |
| 712 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 713 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 715 | Added Entry - Corporate Name (Performing Group) | Data field | obsolete | 1 | 1 |
| 720 | Added Entry - Uncontrolled Name | Data field | 626942 | 686458 | |
| 724 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 730 | Added Entry - Uniform Title | Data field | 109566 | 122907 | |
| 740 | Added Entry - Uncontrolled Related/Analytical Title | Data field | 166784 | 209740 | |
| 741 ❗ | ❗ INVALID FIELD TAG | 43 | 60 | ||
| 742 ❗ | ❗ INVALID FIELD TAG | 3 | 4 | ||
| 743 ❗ | ❗ INVALID FIELD TAG | 10 | 10 | ||
| 745 ❗ | ❗ INVALID FIELD TAG | 7 | 9 | ||
| 749 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 750 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 751 | Added Entry - Geographic Name | Data field | 1197 | 1217 | |
| 752 | Added Entry - Hierarchical Place Name | Data field | 138773 | 140604 | |
| 753 | System Details Access to Computer Files | Data field | 7 | 9 | |
| 755 | Added Entry - Physical Characteristics | Data field | obsolete | 2 | 2 |
| 758 | Resource Identifier | Data field | 5 | 5 | |
| 760 | Main Series Entry | Data field | 1415 | 1472 | |
| 761 ❗ | ❗ INVALID FIELD TAG | 175 | 180 | ||
| 762 | Subseries Entry | Data field | 163 | 475 | |
| 765 | Original Language Entry | Data field | 1205 | 1294 | |
| 767 | Translation Entry | Data field | 370 | 510 | |
| 776 | Additional Physical Form Entry | Data field | 801277 | 835050 | |
| 777 | Issued With Entry | Data field | 826 | 940 | |
| 780 | Preceding Entry | Data field | 105419 | 113670 | |
| 782 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 785 | Succeeding Entry | Data field | 87637 | 100739 | |
| 786 | Data Source Entry | Data field | 9 | 16 | |
| 787 | Other Relationship Entry | Data field | 412433 | 460048 | |
| 797 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 800 | Series Added Entry - Personal Name | Data field | 40687 | 41278 | |
| 810 | Series Added Entry - Corporate Name | Data field | 65203 | 65664 | |
| 811 | Series Added Entry - Meeting Name | Data field | 667 | 668 | |
| 820 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 830 | Series Added Entry - Uniform Title | Data field | 1425771 | 1495316 | |
| 833 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 840 | Series Added Entry - Title | Data field | obsolete | 189 | 191 |
| 841 | Holdings Coded Data Values | Data field | 5 | 15 | |
| 845 | Terms Governing Use and Reproduction | Data field | 1 | 1 | |
| 884 | Description Conversion Information | Data field | 434904 | 434930 | |
| 886 | Foreign MARC Information Field | Data field | 2794851 | 3992245 | |
| 887 | Non-MARC Information Field | Data field | 60229 | 60230 | |
| 888 ❗ | ❗ INVALID FIELD TAG | 15 | 15 | ||
| 889 ❗ | ❗ INVALID FIELD TAG | 204213 | 204213 | ||
| 890 ❗ | ❗ INVALID FIELD TAG | 10 | 10 | ||
| 891 ❗ | ❗ INVALID FIELD TAG | 29 | 80 | ||
| 895 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 896 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 897 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 898 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 900 ❗ | ❗ INVALID FIELD TAG | 41 | 57 | ||
| 901 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 902 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 904 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 906 ❗ | ❗ INVALID FIELD TAG | 475 | 476 | ||
| 908 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 909 | Awaiting OCLC Upgrade | Data field | 15 | 16 | |
| 910 ❗ | ❗ INVALID FIELD TAG | 51 | 109 | ||
| 916 | Authority Control Information | Data field | 514913 | 515519 | |
| 917 | Production Category | Data field | obsolete | 35628 | 35628 |
| 919 ❗ | ❗ INVALID FIELD TAG | 5 | 18 | ||
| 920 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 922 ❗ | ❗ INVALID FIELD TAG | 24 | 24 | ||
| 923 ❗ | ❗ INVALID FIELD TAG | 275 | 276 | ||
| 925 ❗ | ❗ INVALID FIELD TAG | 421 | 421 | ||
| 930 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 931 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 935 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 936 ❗ | ❗ INVALID FIELD TAG | 142 | 142 | ||
| 938 ❗ | ❗ INVALID FIELD TAG | 963 | 1094 | ||
| 940 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 945 | BL Local Title | Data field | 1313022 | 1313222 | |
| 948 ❗ | ❗ INVALID FIELD TAG | 4252 | 4252 | ||
| 949 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 950 | Library of Congress Subject (Cross-Reference) | Data field | 1608 | 3419 | |
| 951 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 952 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 953 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 954 | Transliteration Statement | Data field | 45778 | 45781 | |
| 955 | Shelving Location | Data field | 4002 | 4047 | |
| 956 ❗ | ❗ INVALID FIELD TAG | 8 | 8 | ||
| 957 | Acquisitions Data | Data field | 2342165 | 2382769 | |
| 958 | Superseded Shelfmark | Data field | obsolete | 227919 | 236801 |
| 959 | Document Supply Status Flag | Data field | 312309 | 312324 | |
| 962 | Colindale Location Flag | Data field | obsolete | 15 | 15 |
| 963 | Cambridge University Library Location | Data field | obsolete | 132133 | 132185 |
| 964 | Science Museum Library Location | Data field | obsolete | 11259 | 11311 |
| 965 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 966 | Document Supply Acquisitions Indicator | Data field | 560977 | 575635 | |
| 968 | Record Status Field | Data field | 58235 | 58237 | |
| 970 | Collection Code | Data field | 14 | 14 | |
| 975 | Insufficient Record Statement | Data field | obsolete | 121184 | 121437 |
| 976 | Non-monographic Conference Indicator | Data field | obsolete | 349820 | 349820 |
| 979 | Negative Shelfmark | Data field | 322235 | 322296 | |
| 980 | Card Production Indicator | Data field | obsolete | 69929 | 69930 |
| 981 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 984 ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| 985 | Cataloguer’s Note | Data field | 7981254 | 12822273 | |
| 986 ❗ | ❗ INVALID FIELD TAG | 7 | 7 | ||
| 987 ❗ | ❗ INVALID FIELD TAG | 28 | 28 | ||
| 990 | Product Information Code | Data field | 89 | 89 | |
| 991 ❗ | ❗ INVALID FIELD TAG | 45 | 45 | ||
| 993 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 994 ❗ | ❗ INVALID FIELD TAG | 4521 | 4521 | ||
| 995 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 997 | Shared Library Message Field | Data field | 11185 | 11252 | |
| 998 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 999 ❗ | ❗ INVALID FIELD TAG | 353 | 359 | ||
| 02X ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 0N0 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 1X0 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| 24X ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 49X ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 50X ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 5X0 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 65X ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 6X0 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 6XX ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 7KX ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 7O0 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 83X ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 88X ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| 8XX ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| A00 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| A02 | Serial Acquisitions System Number | Local data field | obsolete | 610673 | 611122 |
| A36 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| AAW ❗ | ❗ INVALID FIELD TAG | 5 | 5 | ||
| ABS ❗ | ❗ INVALID FIELD TAG | 6 | 6 | ||
| ACF | Previous Copyright Fee Information | Local data field | 1414727 | 10230921 | |
| AIT ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| ALB ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| AQN | Acquisitions Notes Field | Local data field | obsolete | 139933 | 140125 |
| AST ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| AUK ❗ | ❗ INVALID FIELD TAG | 5 | 5 | ||
| AY0 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| AY2 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| AYD ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| AYX ❗ | ❗ INVALID FIELD TAG | 16 | 18 | ||
| BGT | BGLT (British Grey Literature Team) Report Flag | Local data field | obsolete | 37651 | 37651 |
| BOO ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| BUF | Batch Upgrade Flag | Local data field | 526364 | 526369 | |
| CAT | Cataloguer | Local data field | 20436613 | 137587026 | |
| CFI | Copyright Fee Information | Local data field | 2055645 | 3501140 | |
| CNF | Document Supply Conference Heading | Local data field | 633331 | 633368 | |
| CXX ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| D42 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| DGM | Digitised Record Match | Local data field | 594302 | 594303 | |
| DRS ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| DRT | Digital Record Type | Local data field | 2104483 | 2104987 | |
| DSC ❗ | ❗ INVALID FIELD TAG | 3 | 3 | ||
| E60 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| EBU ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| EEX ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| EST | Document Supply ESTAR (Electronic Storage and Retrieval System) Flag | Local data field | 20008 | 20008 | |
| EXP | Block Export | Local data field | 104875 | 104877 | |
| FFI ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| FFP | Flag For Publication | Local data field | 313775 | 313799 | |
| FID ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| FIN | Finished (Cataloguing) | Local data field | 17839575 | 17840571 | |
| FMT | Format | Aleph control field | 20436613 | 20436619 | |
| IRA ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| ITM ❗ | ❗ INVALID FIELD TAG | 67 | 67 | ||
| LAS | Last CAT Field | Local data field | 20436613 | 20440304 | |
| LCS | Library of Congress Series Statement | Local data field | obsolete | 7080 | 7263 |
| LDO | LDO (Legal Deposit Office) Information | Local data field | 309390 | 310344 | |
| LEO | LEO (Library Export Operations) Identifier | Local data field | 12068691 | 14098376 | |
| LET | Serials claim letter title | Local data field | 40190 | 40219 | |
| LKR | Aleph data field | 1071048 | 1209153 | ||
| LOC ❗ | ❗ INVALID FIELD TAG | 5 | 7 | ||
| M42 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| MIS | Monograph in Series Flag | Local data field | 9727 | 9732 | |
| MNI | Medium-Neutral Identifier | Local data field | 20340 | 20345 | |
| MPX | Map Leader Data Element | Local data field | obsolete | 25722 | 25722 |
| MUL ❗ | ❗ INVALID FIELD TAG | 4304 | 4304 | ||
| NEG | LDO (Legal Deposit Office) Signoff | Local data field | obsolete | 28536 | 28536 |
| NID | Newspaper Identifier | Local data field | 37368 | 37373 | |
| O40 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| OBJ | Digital Object Field | Local data field | 1 | 1 | |
| OHC | Original Holding Count | Local data field | 541612 | 541612 | |
| ONS | ONIX Subjects | Local data field | 655318 | 2460309 | |
| ONX | ONIX Un-mapped Data | Local data field | 217440 | 217459 | |
| OSS ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| P40 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| PFI ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| PLR | PRIMO Large Record | Local data field | 111 | 111 | |
| PST ❗ | ❗ INVALID FIELD TAG | 82 | 91 | ||
| SAT ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| SBL ❗ | ❗ INVALID FIELD TAG | 5 | 7 | ||
| SFO ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| SID | Source ID | Aleph data field | 750443 | 756823 | |
| SMS ❗ | ❗ INVALID FIELD TAG | 181 | 181 | ||
| SRB ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| SRC | Source | Local data field | 16394053 | 18922481 | |
| SSD | STM Serials Designation | Local data field | obsolete | 27140 | 27157 |
| STA | Status | Local data field | 439144 | 439161 | |
| STC ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| STS ❗ | ❗ INVALID FIELD TAG | 7 | 7 | ||
| TAG ❗ | ❗ INVALID FIELD TAG | 135 | 135 | ||
| TCO | ❗ [UNKNOWN] | Local data field | 1833187 | 1836704 | |
| TEM ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| TOC | Document Supply ETOC (Electronic Table of Contents) Flag | Local data field | 55296 | 55296 | |
| TXX ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| U60 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| UNO | Unencrypted Download ID | Local data field | 183825 | 183843 | |
| USS ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| X01 ❗ | ❗ INVALID FIELD TAG | 5 | 5 | ||
| X03 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| X10 ❗ | ❗ INVALID FIELD TAG | 2 | 2 | ||
| XX1 ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| XXX ❗ | ❗ INVALID FIELD TAG | 1 | 1 | ||
| YYY ❗ | ❗ INVALID FIELD TAG | 1 | 1 |
The table below lists the number of records, and the number of fields, containing invalid or obsolete fields field tags, broken down into the 18 files which make up the BLL01 export.
See recommendations page for suggested actions.
| File | Number of records | Number of fields |
|---|---|---|
| 1 | 297736 | 346086 |
| 2 | 553172 | 658073 |
| 3 | 516404 | 603945 |
| 4 | 547332 | 650730 |
| 5 | 528798 | 618112 |
| 6 | 380168 | 550959 |
| 7 | 680677 | 954206 |
| 8 | 61020 | 65000 |
| 9 | 24997 | 26016 |
| 10 | 15206 | 16149 |
| 11 | 19184 | 21197 |
| 12 | 48366 | 49597 |
| 13 | 89829 | 90504 |
| 14 | 44524 | 44983 |
| 15 | 16711 | 17528 |
| 16 | 22272 | 24414 |
| 17 | 37051 | 38652 |
| 18 | 16499 | 18030 |
| TOTAL | 3899946 | 4794181 |
The following fields are defined, but are either (a) not used in BLL01, or (b) not exported from Aleph
Table of fields (click to expand)
| Field tag | Name | Type | Obsolete? |
|---|---|---|---|
| 023 | Cluster ISSN | Data field | |
| 061 | National Library of Medicine Copy Statement | Data field | |
| 071 | National Agricultural Library Copy Statement | Data field | |
| 211 | Acronym Or Shortened Title | Data field | obsolete |
| 212 | Variant Access Title | Data field | obsolete |
| 214 | Augmented Title | Data field | obsolete |
| 258 | Philatelic Issue Data | Data field | |
| 302 | Page Or Item Count | Data field | obsolete |
| 303 | Unit Count | Data field | obsolete |
| 304 | Linear Footage | Data field | obsolete |
| 305 | Physical Description For Sound Recordings | Data field | obsolete |
| 308 | Physical Description For Films (Archival) | Data field | obsolete |
| 341 | Accessibility Content | Data field | |
| 355 | Security Classification Control | Data field | |
| 357 | Originator Dissemination Control | Data field | |
| 359 | Rental Price | Data field | obsolete |
| 361 | Structured Ownership and Custodial History | Data field | |
| 387 | Representative Expression Characteristics | Data field | |
| 512 | Earlier Or Later Volumes Separately Cataloged Note | Data field | obsolete |
| 517 | Categories Of Films Note (Archival) | Data field | obsolete |
| 523 | Time Period Of Content Note | Data field | obsolete |
| 527 | Censorship Note | Data field | obsolete |
| 537 | Source Of Data Note | Data field | obsolete |
| 567 | Methodology Note | Data field | |
| 570 | Editor Note | Data field | obsolete |
| 582 | Related Computer Files Note | Data field | obsolete |
| 688 | Subject Added Entry-Type of Entity Unspecified | Data field | |
| 692 | Nineteenth Century Subject Series Field | Local data field | obsolete |
| 705 | Added Entry - Personal Name (Performer) | Data field | obsolete |
| 754 | Added Entry - Taxonomic Identification | Data field | |
| 788 | Parallel Description in Another Language of Cataloging | Data field | |
| 842 | Textual Physical Form Designator | Data field | |
| 843 | Reproduction Note | Data field | |
| 844 | Name of Unit | Data field | |
| 851 | Location | Data field | obsolete |
| 855 | Captions and Pattern - Indexes | Data field | |
| 857 | Electronic Archive Location and Access | Data field | |
| 864 | Enumeration and Chronology - Supplementary Material | Data field | |
| 865 | Enumeration and Chronology - Indexes | Data field | |
| 867 | Textual Holdings - Supplementary Material | Data field | |
| 870 | Variant Personal Name | Data field | obsolete |
| 871 | Variant Corporate Name | Data field | obsolete |
| 872 | Variant Conference Or Meeting Name | Data field | obsolete |
| 873 | Variant Uniform Title Heading | Data field | obsolete |
| 876 | Item Information - Basic Bibliographic Unit | Data field | |
| 877 | Item Information - Supplementary Material | Data field | |
| 885 | Matching Information | Data field | |
| 992 | Stored Search Flag | Local data field | obsolete |
| 996 | Z39.50 SFX Enabler | Local data field | |
| NLP | Newspaper Programme Identifier | Local data field | |
| RSC | Remote Supply Collection | Local data field | |
| SYS | Aleph System Number | Aleph control field | |
| VIT | Virtual Item | Local data field | |
| WII | What Is It? | Local control field |