A microscope by Bausch & Lomb,
in lacquered brass with black-enamelled tripod platform foot, two eyepieces, two objectives, objective changer, circular stage, subtage and substage mirror pivoted on graduated swivel joints, hinged pillar stand with coarse and fine focussing, the limb marked Pat. Oct 3 1876 Pat. Oct 13 1885 -- 13in. (33cm.) high, in wood case with brass plaque engraved Med. Dept. U.S.A.
Lot Essay
C.f. Lots 572, 584 and 609
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KOSLOV COLLECTION OF CAMERAS AND SCIENTIFIC INSTRUMENTS