Audiometry

Related Objects

Audiometer Group Test at Valhalla Public School, Valhalla, NY, 1938
safety negative
Rosenfeld and Sons
1938-06-16
1984.187.53600
View thumbnail Hearing tests in classroom at Hudson St., NYC, 1927
safety negative
Rosenfeld and Sons
1927-05-31
1984.187.28747
View thumbnail Classroom audio testing, 1927
safety negative
Rosenfeld and Sons
1927-12
1984.187.30354A
View Audiometer Classroom Testing, Valhalla, NY, 1938
safety negative
Rosenfeld and Sons
1938-06-16
1984.187.53597
View Audiometer Test at Valhalla Public School, Valhalla, NY 1938
safety negative
Rosenfeld and Sons
1938-06-16
1984.187.53598
View Audiometer in Use in Valhalla Public School, Valhalla, NY, 1938
safety negative
Rosenfeld and Sons
1938-06-16
1984.187.53595
View Audiometer Test at School, Valhalla, NY, 1938
safety negative
Rosenfeld and Sons
1938-06-16
1984.187.53594
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Technology
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