26th Apr, 2019 12:00
Fine Photographica & Instruments of Science & Medicine
An American Surveyor's Compass
America, late 18th Century, engraved 'C. M.' to side and dated '1790' to underside, wooden body of circumferentor, with engraved graduated brass scale 0-90-0, steel compass needle with brass support behind glass window, brass alidade unscrews and fits to side when not in use, staff cocket below, width 29cm
America, late 18th Century, engraved 'C. M.' to side and dated '1790' to underside, wooden body of circumferentor, with engraved graduated brass scale 0-90-0, steel compass needle with brass support behind glass window, brass alidade unscrews and fits to side when not in use, staff cocket below, width 29cm
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Auction: Fine Photographica & Instruments of Science & Medicine, 26th Apr, 2019
