Company of Stationers. 1806. 48, [6 ad's]pp. Illustrated with some engraved diagrams within the text. Partly printed in red and black. Engraved vignette to front wrapper. Tax stamp. Unbound as issued. Little worn at extremities and corners turned; wrappers and outer edges a little dust-soiled; upper wrapper/title has some staining; last outer leaf has some calculations in ink; library number in ink at head of title/wrapper; else a good plus copy.This series of almanacks are particularly interesting for the enigmas, charades, and mathematical problems which were set each year and only answered twelve months later in the next issue.