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Lot 335: Scientific Instruments: A Boettger & Wittig,
Photographica & Scientific Instruments
November 6, 2009
Near Reading, United Kingdom
Description: Scientific Instruments: A Boettger & Wittig, Milwaukee, Watch Demagnetiser coil, with aperture for watches, mounted on mahogany plinth, with electric lamp bulb and resistor slide in plinth, circa 1910, 390mm long