Category:Hearing aids of the 1910s

Media in category "Hearing aids of the 1910s"

The following 4 files are in this category, out of 4 total.

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  Aantal mensen bijeen op een demonstratie van gehoorapparaten voor slechthorenden, SFA022006804.jpg 4,725 × 1,913; 1.26 MB
  
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  Vintage Acousticon Model SRB Carbon Hearing Aid By General Acoustic Company, Made In USA From 1910 - 1928 (21175388443).jpg 2,380 × 2,462; 2.19 MB
  
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  Vintage Acousticon Model SRD Dual Microphone Carbon Hearing Aid, Manufactured Between 1910 And 1928 By The General Acoustic Company (14355372717).jpg 2,673 × 1,714; 2.2 MB
  
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  Vintage Acousticon Model SRD Dual Microphone Carbon Hearing Aid, Manufactured Between 1910 And 1928 By The General Acoustic Company (14541820715).jpg 2,910 × 2,140; 2.42 MB