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Wm Gaertner Company 1922 Michelson Research Interferometer Vintage Ad

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Original vintage optical industry trade magazine ad for WILLIAM GAERTNER AND COMPANY of Chicago, IL. Michelson Research Interferometer. With Telescope for Observing, and Microscope for use in Measuring objects in Light Waves. Old 1922 optical industry laboratory instruments advertisement.
    • SKU s255
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