Name Abbreviations Description Titles
folio fo

Each sheet is folded once to make two leaves and four pages. 

50
quarto 4to

Each sheet is folded twice to make four leaves and eight pages. 

455
sexto 6to, 6mo

Each sheet is folded to make six leaves and twelve pages. 

20
octavo 8vo

Each sheet is folded to make eight leaves and sixteen pages. 

2059
duodecimo 12mo

Each sheet is folded make twelve leaves and twenty-four pages.

4224
sextodecimo 16mo

Each sheet is folded four times to make sixteen leaves and thirty-two pages. 

119
octodecimo 18mo

Each sheet is folded to make eighteen leaves and thirty-six pages. 

112
vicesimo-quarto 24mo

Each sheet is folded to make twenty-four leaves and forty-eight pages.

89
trigesimo-secundo 32mo

Each sheet is folded to make thirty-two leaves and sixty-four pages.

30
quadragesimo-octavo 48mo

Each sheet is folded to make forty-eight leaves and ninety-six pages.

0
sexagesimo-quarto 64mo

Each sheet is folded to make sixty-four pages and one hundred and twenty-eight pages.

0
broadside bs

A document printed on one side only of a single sheet of paper.

94
unknown

The format is unknown. 

1939