Category: Sphygmomanometer
Estimated Date: 1930
Name: Oscillotonometre
Manufacturer: Altera, BS

Description: 10×6×2.5” leather box contains a 4” circular dial labelled Oscillotonometre, Scala Alternans, d’apres Recklinghausen, altera, drp, bs. Calibrated in mmHg from 0 to 300. Box also contains cuff and pump. The dial and valve to open to pump are permanently attached to the box.