Rare Find! Beautiful solid brass, blown glass and a precision ground glass magnifier that produces images of three power. Perfect for collectors of crystals and mineral specimens. Items can be interchanged by unscrewing and removing the eye piece. Van Cort is branded on the brass ring assuring its authenticity and quality. Measures 3 7/16” H x 1 7/8” W Comes in the original tubular box with the original instructions.