Multi-Estate Fall 2025 Auction
Lot 497:
Description
Item SKU: C-9998
c. 1910s/1920s; W. A. Baum Company, Inc., – Copiague, Long Island, New York
Antique blood pressure reading kit in case.
William A. Baum concluded that the blood pressure readings recorded at the time were unreliable. In response, in 1910, he invented and patented a revolutionary mercury gravity machine, which he named the Baumanometer.
Untested, but appears to be complete and in excellent condition.
12" L
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