Auction: Clocks, Watches & Scientific Instruments - 2502Location: MarlboroughDate / Time: May 01, 2010 10:00AM
Description:
French Four-vane Surveying Instrument, with 2 1/2-in. dia. silvered horizontal dial calibrated 0-360 and marked B T E and S.G.D.G., four hinged sighting vanes and ball joint leveling mount, ht. 12 1/2 in.
Estimate $100-150