A Cased Spencer Model No. 37 Compound Monocular Polarizing Microscope, circa 1938. 14-3/8 inches high (36.5 cm) ...

Description

A Cased Spencer Model No. 37 Compound Monocular Polarizing Microscope, circa 1938
14-3/8 inches high (36.5 cm) (base)

PRIVATE WEST COAST COLLECTION

Compound Monocular Polarizing Microscope. Spencer No. 37. sn 154794, ca. 1938. Objectives: 48mm, 2.2x, cat. no. 1270; 32mm, 4x, cat. no. 1272; 16mm, 10x, sn 444106, cat. no. 1280, 8mm, 20x, sn 462117, cat. no. 1284; 4mm, 45x, sn 413589, cat. no. 1290; 1.8mm HI, 95x, sn 465993, cat. no. 1295. All objectives mounted in cat. no. 463 centering rings. Oculars: Pinhole, cat. no. 547; 5x, cat. no. 451; 2 each 10x, cat. no. 454; 20x, cat. no. 457; Bausch & Lomb 12.5x filar; Bausch & Lomb 15x wide field micrometer (original to a B&L stereo stand). Substage condenser, n.a. 1.00/1.40, cat. no. 532; dark field condenser, n.a. 1.15/1.25, S.L./T.H.; adapter for 23.2mm dia. eyepieces, cat. no. 550; attachable mechanical stage, cat. no. 495; quick-change nose piece, cat. no. 462; 2 ea. objective centering keys; circular rotating polarizing stage with slow-motion screw option, vernier reads to 3 minutes arc; quartz wedge, cat. no. 542; 1/4 wave plate, cat. no. 544; red 1st order plate, cat. no. 540; bottle Spencer immersion oil (crystallized); Bausch & Lomb stage micrometer, .01 mm graduations; owner fabricated incident illumination slide. Fitted mahogany carrying case, 19-1/2" high x 11-3/4" wide x 8-1/2" deep. Fitted, purple plush lined box for accessories. Only accessory missing is a Becke aperture plate, cat. no. 545, which may not have been originally present.


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