on Feb 7, 2017
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Known Information
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| Size | Height adjustable from approx 8 1/4" to 11 3/4" (to the top edge of the lens housing) on a 3" diameter base, lens housing approx 2 1/4" diameter, lens support bar (inc housing) approx 8 1/8" long | A fine antique brass bench standing bullseye condenser accessory for a microscope, and dating to around the late 19th century
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| Do you know more?
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