Number Line in Modern Trade Publications

Number lines in publications

Printing information in modern trade publications is often found in the number line, also known as a printer’s key. The number appears in various ways; sometimes dates are included. The number (and date if included) of the printing is the earliest number that appears.

Examples of number lines that indicate 1st printings are:

Examples of number lines that indicate 2nd printings are:

Number lines that include dates:

When the number line includes characters that cannot be reproduced in a catalog record, omit the characters and replace with the mark of omission:

Notes in bibliographic records

Always transcribe a number line when one is present: in a 500 note when a catalog record for each printing is being created or in a 590 note when one record is created for all printings of an editon.

Separate Records for all printings

Make a 500 note, quoting from the item.

500     ‡a Number line on title page verso indicates 1st printing: 94 95 96 97 98 /RRD 10 9 8 7 6 5 4 3 2 1.

500     ‡a Number line on title page verso indicates 4th printing: 5 7 9 10 8 6 4.

One Record for printings within an edition

Make a 590 note for each printing.

590     ‡a BEIN Bailey 665: Number line on title page verso indicates 2nd printing: 01 00 99 98 97 8 7 6 5 4 3 2.
590     ‡a BEIN Bailey 666: Number line on title page verso indicates 4th printing: 01 00 99 8 7 6 5 4.

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