Category: Sphygmomanometer
Estimated Date: 1924
Name: Sphygmomanometer, Baum
Manufacturer: W.A.Baum, Co. Inc

Description: 14.25“x 4.5“x 2.5” oak box, 12” of lid lifts up with spring mechanism to reveal 300 mmHg scale, glass tube with 3.5“x 1” reservoir. Label Baumanometer desk model, Ivorine scale with serial number 42378. Accompanying letter dates it at 1924.

Reference 1: 311