$411
"The Surveyor's Assistant" by Henry Wadsworth, Duxbury, Mass. , Patd. August 21st. 1877 , with 4 1/2-inch circular card disc, moving brass arm, pine drawing board and stained mahogany case with maker's label Henry Wadsworth, Proprietor and Inventor of the Circumferentor, The Surveyor's Assistant, a Scientific and Short Hand Method to Draw a Map or Plan, Determine Distances & C. , lg. 21 3/4 in.
Auctioneer:
Skinner
Date:
2005-05-03