07-25-200907-25-2009
Skinner Auctions
Skinner AuctionsMarlborough MA
July 25, 2009 10:00 AMCalender
286

Circle Dividing Apparatus by Kern-Aarau

Sell one like this
$119$100
Auction: Clocks, Watches & Scientific Instruments - 2447Location: MarlboroughDate / Time: July 25, 2009 10:00AM

Description:

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."
Estimate $50-100

case need gluing, split in top

Keywords

Kern-Aarau