Category: Stethoscope
Estimated Date: 1900
Name: Oertels Stethoscope
Manufacturer: Waarenhaus

Description: 1” diaphragm head with unusual 3/4” high and a notched shape. The rubber tubing is attached to two rods from the top, one rod and the tubing missing. Differs from the other example here in that the diaphragm is white and the top curved instead of flat.

Reference 1: 35

Obstetrical Stethoscope
Stethoscope,Cammans  pleximeter
Oertels Stethoscope
Stethoscope, Biazzi-Bianchi