Sat, Oct 21, 2017 10:00AM EDT - Mon, Oct 23, 2017 10:00AM EDT
American, mid-18th century. A plain compass in brass, of diminutive size, having two dovetailed sight vanes and ball-form socket, silvered and engraved face with a star and fleur-de-lis pattern, signed Made by Anthony Ham Philadelphia; overall lg. 10 in., needle lg. 4 in.
Anthony Ham and well-known American instrument maker Anthony Lamb have a documented family association beginning in 1733. Most American surveying instruments from this time period were made from wood. Both Lamb and Ham produced instruments in both wood and brass. The back of this compass is struck with a 2. Two additional compasses by Ham are in private collections, numbers 17 and 20. These low numbers suggest a very minimal production of compasses by Ham.