Sold for:
$923
$923
Brass Double Telescope Graphometer, signed Brand Freres, Opticians du Roi, Bruxilles , 19th century, the protractor arch with engraved scales and sighting vanes, silvered compass scale calibrated 0-360, cardinal points in block letters, alidade mounted with a 12-in. telescope with rack focusing, twin vernier scales, and bubble level, lower portion with telescope above a ball-and-socket joint and flattened thumbscrew adjusting nut, all on a turned wood stand. small scratch on lens, objective lens has chips
Auctioneer:
Skinner
Date:
2012-12-01
