$235
Two Optician's Test Sets, early 20th century, a test set by F. A. Hardy & Co., Chicago , No. 4901, containing spherical and cylindrical concave and convex lenses in gilt and nickel-plated mounts, in velvet-lined cloth-covered case, wd. 15 in.; and a test set with American Optical booklets, wd. 22 in.
Auctioneer:
Skinner
Date:
2007-03-24