Category: Sphygmomanometer
Estimated Date: 1921
Name: Baumanometer, kit bag model
Manufacturer: W.A. Baum Com Inc.

Description: Wooden box 12.5“x3.25“x1.75” Lid springs open to reveal ivorine scale to 260 mmHg. Painted black leters, occasional red cross bars. Serial number 18652. Standard Baum constrction of the glass manometer. Sold to George Berbert & Sons, Denver, Colo., Dec 13, 1921.

Reference 1: 259