Mr. Cooper and Mr. Cramer with machine

Notes:
Two men seated at a table with a hearing-aid machine. One man is controlling the machine and testing the other man's hearing. The machine is shown with a sign that reads, "Sonotone - To restore the happiness of hearing."
Data Provider:
Grand Rapids Public Library (Grand Rapids, Mich.)
Subject Topic:
Hearing aids, Deafness, and Medical equipment & supplies
Rights:
© Grand Rapids Public Library. All Rights Reserved.
URL:
http://cdm16055.contentdm.oclc.org/cdm/ref/collection/p15416coll2/id/574