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Raber Uniques & Collectibles 11.9.26

Lot 481:

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W. A. Baum Baumanometer 300 Mercury

Live auction will start in __ days and __ hours

Start price: $10

Estimated price: $10 - $500

Buyer's Premium: 20%

Description

13.5 in. Long. A Baumanometer 300 Model mercury-gravity sphygmomanometer produced by the W. Baum Co., Inc. The instrument is housed in a portable metal case with a textured gray finish. The interior lid features a vertical glass manometer tube containing liquid mercury, set against a black and white metal scale calibrated in millimeters of mercury (mmHg) from 0 to 300.