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| GEN | Quartos |
| GENHRZ | Quartos shelved horizontally |
F | Folio books measuring more than 28 cm. |
M | Miniature books measuring less 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 (books more than 46 cm). |
| PFHRZ | Large portfolios (shelved horizontally). |
N.B. If by putting an item measuring under 28 cm is placed into a prefab, CMI, or cloth case, and the overall height is increased to over 28 cm, remember to designate the volume item as a folio.
Broadsides and Flat files
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