Category:Hearing aids of the 1920s

Media in category "Hearing aids of the 1920s"

The following 5 files are in this category, out of 5 total.

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  Bell telephone magazine (1922) (14569625968).jpg 1,742 × 2,624; 794 KB
  
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  Bell telephone magazine (1922) (14569819567).jpg 1,702 × 2,612; 790 KB
  
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  Carrying Case For The Vintage Acousticon Silver Anniversary Model 28 Carbon Hearing Aid, Circa 1927 - 1932 (16396601678).jpg 2,775 × 2,620; 3.08 MB
  
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  Museum of Medicine Berlin Germany Telephone hearing aids.jpg 2,048 × 1,536; 600 KB
  
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  Vintage Acousticon Silver Anniversary Model 28 Carbon Hearing Aid, Circa 1927 - 1932 (15964041803).jpg 3,714 × 3,192; 3.4 MB