Sold for:
$323
$323
Surveyor's Brass Four-Vane Graphometer, probably England, with original oxidized finish, 1 3/4-inch dia. compass with needle ring, silvered arc divided 0-180 in both directions, alidade with two sights and twin verniers, on ball-and-socket staff mount, circle radius 3 1/2 in., in associated mahogany case.
Auctioneer:
Skinner
Date:
2007-10-28