Signedon eyepiece: BAUSCH & LOMB OPTICAL CO. / Rochester N.Y. U.S.A.
on drum nosepiece: BAUSCH & LOMB OPTICAL CO. / ROCHESTER, N.Y.
on drum nosepiece: U.S.A. [in prism trademark]
Inscribedon right prism housing in binocular eyepiece: 230723
on objective drum and case: Z-39
Historical AttributesThis microscope was used in the Biological Laboratories at Harvard.
Primary SourcesBausch & Lomb, Greenough and Wide Field Binocular Microscopes, catalogue, 1930.
ProvenanceBiological Laboratories, Harvard University; transfer to CHSI, 1981.