US-211. MONOCULAR LABORATORY MICROSCOPE BY SPENCER LENS CO.
US-239. PETROGRAPHICAL MICROSCOPE "LA" BY BAUSCH & LOMB
US-638. 1878-1879 GUNDLACH-TYPE STUDENT'S MICROSCOPE BY BAUSCH & LOMB
US-715. 1884-95 "HARVARD MICROSCOPE" BY BAUSCH & LOMB
US-717. 1880-91 "INVESTIGATOR MICROSCOPE" BY BAUSCH & LOMB
US-766. GUNDLACH-TYPE MICROSCOPE BY BAUSCH & LOMB
US-776. "FAMILY MICROSCOPE" BY BAUSCH & LOMB
US-777. "FAMILY MICROSCOPE" BY BAUSCH & LOMB
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US-778. "FAMILY MICROSCOPE" BY BAUSCH & LOMB
US-789. MICROSCOPE WITH SCREW FOCUS BY BAUSCH & LOMB
US-794. "STUDENT MICROSCOPE" BY BAUSCH & LOMB
US-795. 1876-1879 GUNDLACH-TYPE STUDENT'S MICROSCOPE BY BAUSCH & LOMB
US-796. NICKEL PLATED "RESEARCH MICROSCOPE" BY BAUSCH & LOMB
US-809. FUSEE CHAIN-DRIVE MONOCULAR MICROSCOPE BY T.H. McALLISTER
US-810. ACME NO. 3 MICROSCOPE BY JOHN W. SIDLE & CO
US-811. 1876-1882 "LARGE STUDENT'S MICROSCOPE" BY BAUSCH & LOMB
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