Details
A Swift 'Challenge' binocular microscope
in lacquered and oxidised brass, signed on the tripod foot James Swift, 43 University Street, London W.C., with sliding eyepiece adjustment, rack coarse focussing, nosepiece fine adjustment, Wenham and Nicol prisms in body-tube, mechanical circular graduated stage, sub-stage condenser, mirror, one pair of eyepieces, four objectives, objective changer and polarizer -- 15in. (38cm.) high, circa 1875, in mahogany case
in lacquered and oxidised brass, signed on the tripod foot James Swift, 43 University Street, London W.C., with sliding eyepiece adjustment, rack coarse focussing, nosepiece fine adjustment, Wenham and Nicol prisms in body-tube, mechanical circular graduated stage, sub-stage condenser, mirror, one pair of eyepieces, four objectives, objective changer and polarizer -- 15in. (38cm.) high, circa 1875, in mahogany case