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Historical Item

Name: Bausch & Lomb Compound Monocular Microscope

Category: scientific instrument

Size/weight: small/moderately light

Rarity: uncommon

Value: moderately expensive

Uses: scientific research

Description (ca. 1921):
This microscope was popular for dissections and anatomical studies in the 1920’s and 30’s. The foot and pillar units are iron and painted black. The nosepiece has room for three objectives that rotate into position with a detent stop for precise positioning. Focusing is done with a knob that controls a rack and pinion gear set. The stage is graduated and rotates 360 degrees. Although the design is similar to a petrographic polarized light microscope, the monocular microscope developed and sold by Bausch & Lomb does not include either an analyzer or polarizer.