An elegant design with outstanding optical precision. Machined to have a smooth threaded focusing adjustment. The dual double convex ground lenses give a wide, flat field of view. The perfect magnifier for collectors, engineers, architects, and draftsmen.
Photographic model has a black aluminum base ring for use with negatives and photographic emulsion.
A very similar tabletop magnifier, once owned by Thomas Jefferson, can be found among the collection at Monticello. Each model is available in solid lacquered brass or contemporary black aluminum.