Sold for:
$119
$119
Circle Dividing Apparatus by Kern-Aarau, Switzerland, comprised of an 8 in. dia. bottom plate with external and internal divisions, the alidade with vernier which revolves at the center and alidade arm with hand wheel, marked with maker's name, instruction manual and hardwood carrying case. Note: This instrument is used for the "rapid division of any circle from 50 to 620 mm. in diameter into any number of equal parts or for tracing out radii in a circle." case need gluing, split in top
Auctioneer:
Skinner
Date:
2009-07-25
