Lot Essay
The Zentmayer swinging sub-stage was patented in London by Ross in 1876. C.f. Lots 542, 584 and 609.
Details
A binocular microscope by Ross,
No. 5265, in lacquered brass, with Ross-Zentmayer stand on A-form tripod platform foot, the body tube with rack eyepiece adjustment and coarse focussing, one pair of eyepieces, two objectives in Beck changer, circular mechanical stage, swinging sub-stage and mirror -- 17in. (43cm.) high, late 19th century
No. 5265, in lacquered brass, with Ross-Zentmayer stand on A-form tripod platform foot, the body tube with rack eyepiece adjustment and coarse focussing, one pair of eyepieces, two objectives in Beck changer, circular mechanical stage, swinging sub-stage and mirror -- 17in. (43cm.) high, late 19th century