Category: Sphygmomanometer
Estimated Date: 1921
Name: Sphygmomanometer, Baum
Manufacturer: W.A.Baum, Co. Inc

Description: 14.25“x4.5“x2.5” walnut box, 12” of lid lifts up with spring mechanism to reveal 300 mmHg scale, glass tube with 3.5×1” reservoir. Label Baumanometer super sphyg desk model, Ivorine scale with serial number 14756.

Reference 1: 311