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.

Some scratching to deck plate, minor wear to lacquering, some patination spotting to accesories, rubbing to eyepiece, additional interior box appears to be missing, exterior case with scratching, with other wear commensurate with age and use. Optics not guranteed.