CYPHERING BOOK. December 1st 1794;

by J. Cunningham, b. 1779

$1,250 · Offered by Tavistock Books

n. p. : 1794. Title leaf tipped in on a stub , then 34 leaves with mss ink entries, with different situations explained, such as Inverse Proportion, The Single Rule, Compound Interest, Fellowship, and Rule Of Third etc. ~ 50 leaves of blank paper follow. Paper watermarked with heraldic lion over a bell posited as Gravell ARMS 217.1 . 8-1/4 x 6-3/8 . Modern brown calf spine over marbled paper boards. Binding - Nr Fine. Paper, age-toned, with sporadic spots of foxing. Entries clear &

Found via Rare Books Intel, a search across rare-book dealers, auction houses and marketplaces worldwide.