Welch Scientific Co., Skokie, Illinois, "Standard Mercurial Barometer" on wood backboard. This type of barometer was used by the United States Weather Bureau and other laboratories. 6mm heavy-walled glass tube, vacuum filled with mercury. Double-scale
Anonymous (not verified)
24 October 2024
Appears to be in very good condition and in working order.
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auction
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Manufacturer
Welch Scientific Co
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170.00
Credit
R. O. Schmitt Fine Arts
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Welch Scientific Co., Skokie, Illinois, "Standard Mercurial Barometer" on wood backboard. This type of barometer was used by the United States Weather Bureau and other laboratories. 6mm heavy-walled glass tube, vacuum filled with mercury. Double-scale made of non-tarnishing nickel silver. Appears to be in very good condition and in working order.
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