Category: Stethoscope
Estimated Date: 1913
Name: Phonendoscope, Surgman’s
Manufacturer: unknown

Description: 1 1/8” diameter steel circular chest piece 5/16” deep with a groove between the chest surface and the opposite side. Two holes for insertion of rubber tubes as flexible earpieces. Opposite side has a white, celluloid or similar material. On one side ther is a 3/4” horn shaped deice on an arm that swivels the horn into the center of the chest piece to serve as a phonendoscope.

Reference 1: 31