CENCO Central Scientific Company Instrument Catalog 78425 72975 Compass Degree

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Cenco Central Scientific Company 79975

RARE Antique Rogers Electric Laboratories Medical Quack Violet Ray Machine WORKS

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ANTIQUE VINTAGE RARE GALVANOMETER , chipped glass

Large Vintage Industrial Factory Meter Retro, SteamPunk, Mancave prop

Cenco Central Scientific Co Rheostat 4.3 to 10.0 Amp 20.5 Ohm Made in USA !!!!!