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| GEN | Up to 28 cm |
| GENHRZ | Up to 28 cm (requiring horizontal shelving) |
F | Folio books measuring more than 28 cm. |
M | Miniature books measuring less no more than 10 cm. [N.B. Also notate box and section number in $m after the call number - boxes are kept in basement.] |
PF | Large portfolios (more than 46 cm). |
| PFHRZ | Large portfolios (requiring horizontal shelving). |
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See Acquisitions and Accessioning wiki on Broadsides and Flat Files for other size information.
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