Auction: Clocks, Watches & Scientific Instruments - 2283Location: BoltonDate / Time: May 03, 2005 10:00AM
Description:
Polished Brass Semi-Circumferentor by J. Hale,Patd. Mar. 10. 1886, No. 38, with 11-inch diameter protractor divided 0-90-0, alidade with bubble-level, vernier with clamp and folding sights, on ball-and-socket staff mount, in fitted ebonized case (lid split),lg. 14 in.
Estimate $600-800