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Bird oversize definitions:
- 30-41 cm is oversize -- location is normal location for that call number in Bird, subfield k OVERSIZE, then call number.
- 42+ cm is flat -- location is one of the bird,xl4 codes
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- , subfield k FLAT, then call number
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- (
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- there was no |k before Jan. 2024).
Exceptions:
- For call numbers M (not ML or MT) or N-NX oversize begins at 36 cm.
- For M3 only, oversize is over 38 cm.
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