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Optical Instrument
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
Patent model for Laban Heath, “Improvement in Optical Instruments,” U.S. Patent 54,542 (May 8, 1866). Laban Heath (1837-1894) was a New England engraver who was particularly interested in detecting counterfeit currency. This convertible instrument could be used as a microscope, a telescope, or a magnifying glass. The inscription reads "L. HEATH."
National Museum of American History’s own descriptionSubjects
Credit lineOptical Instrument. Heath, Laban. National Museum of American History. CC0.
