A Cased Spencer Research Model 3LXG Binocular Compound Microscope, circa 1940. 12-3/4 inches high (32.4 cm) (base). ... (Total: 2 Items)

Description

A Cased Spencer Research Model 3LXG Binocular Compound Microscope, circa 1940
12-3/4 inches high (32.4 cm) (base)

PRIVATE WEST COAST COLLECTION

Serial number 159684; Removable binocular head with interpupillary adjustment and adjustable left eyepiece. Fine focus calibrated in 2.5 micron/division. Revolving quadruple nosepiece. One pair of oculars marked "COMPENS 15x". Objectives (no cans): "10x Spencer Buffalo USA 431841 16mm N.A. 0.30 Apoch.", brass; "20x Spencer Lens Co. Buffalo USA 8mm N.A. 0.60 APOCH 383397", brass; "44x Spencer Lens Co. Buffalo N.Y. 4mm N.A. 0.95 APO 367838", brass with correction collar; "90x Spencer Lens Co. Buffalo N.Y. 2mm N.A. 1.30 Apochromat 395176", oil immersion, brass; 6 inch Circular Revolving Mechanical X Stage No. 1540, 6in. dia., calibrated in 360º with vernier readout to 3 arc minutes. Complex X-Y mechanical stage with vernier readout to 0.1mm. Substage on rack and pinion. Removable achromatic condenser, N.A. 1.30, iris diaphragm, with slot for glass filter. 2" plano/convex mirror. With later "AO" monocular tube, in citted wooden case

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