Auction: Clocks, Watches & Scientific Instruments - 2314Location: BoltonDate / Time: November 03, 2005 10:00AM
Description:
Brass Semi-Circumferentor, the brass darkened to a deep patina, with trough compass, engraved scale 0-90-0, fleur-de-lis at North, alidade with read-outs and fixed sights, on mahogany compass-box with staff-mount (with holes for a missing plate),wd. 7 1/2 in.
Estimate $600-800