Auction: Clocks, Watches & Scientific Instruments - 2248Location: BoltonDate / Time: September 11, 2004 12:00PM
Description:
Wood Semi-Circumferentor, with blued steel needle in inset well, brass scale divided 1-90-1 and alidade with screw-clamp and two sights, the side with carved owner's (?) initials CM and the base dated 1790, wd. 8 3/4 in.
Estimate $1,400-1,800
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