An American Surveyor's Compass
Late 18th century, unsigned, wooden body of circumferentor, with engraved graduated brass scale 0-90-0, trough compass with brass back engraved, with arrow, steel compass needle with brass support behind glass window, brass alidade unscrews and fits to side when not in use, staff socket below, width 29cm
Sold for £322
Result plus buyers premium
Late 18th century, unsigned, wooden body of circumferentor, with engraved graduated brass scale 0-90-0, trough compass with brass back engraved, with arrow, steel compass needle with brass support behind glass window, brass alidade unscrews and fits to side when not in use, staff socket below, width 29cm