Auction: Clocks, Watches & Scientific Instruments - 2283Location: BoltonDate / Time: May 03, 2005 10:00AM
Description:
Maple Semi-Circumferentor, with arc scaled in punched divisions 0-180 in both directions, trough compass with manuscript N / S directionals, shaped blued-steel needle with brass wing hub, brass alidade with rounded twin sights and read-outs, on staff mount, wd. 9 1/2 in., (one corner chipped).
Estimate $400-600