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Home » Antiques & Collectibles » Science, Medicine « Previous Item · Next Item » Need identification Posted By Views Date Posted Unregistered 6457 December 13, 1901 Price Paid Condition Free/Undisclosed/Unknown Good Edit Item · Description: Have taken entirely apart, no markings at all. Brass, Ebony Base, and cast aluminum (painted green). 5"w x 6"d x 4.25"h. When handle cranks, brass bowl drops against ebony base, then raises again. Brass bowl has a quick disconnect. Best guess is for separating particles of different masses or sizes? Keywords: Need identification

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