$3,308
Brass Goniometer with Turned Wood Platform, Secretan, Paris, 19th century, the platform supports thumbscrew-adjusted leveling feet, circular base with centrally mounted pillar, wheel coarse adjustment and thumbscrew fine adjustment, with vernier readouts on edge of disc numbered 0-180 in each direction, and folding and screw-adjusted specimen holder, overall ht. with platform 8 1/4 in.
Auctioneer:
Skinner
Date:
2011-07-16