Details
A student's binocular microscope by Zentmayer,
in part-lacquered brass, with sliding eyepiece adjustment, rack coarse and screw fine focussing, two objectives in changer and tapered part-cylindrical stand on Y-foot, signed J. Zentmayer Phila Pat'd Aug 15 76 -- 13½in. (34cm.) high, late 19th century (soldered repair to body-tube/rack mounting)
in part-lacquered brass, with sliding eyepiece adjustment, rack coarse and screw fine focussing, two objectives in changer and tapered part-cylindrical stand on Y-foot, signed J. Zentmayer Phila Pat'd Aug 15 76 -- 13½in. (34cm.) high, late 19th century (soldered repair to body-tube/rack mounting)