Prosch Manufacturing Co. (New York, NY)

 

Diaplane Shutter - c. 1904

 

The American Annual of Photography (Times-Bulletin) for 1904, The Anthony & Scovill Co., copyright 1903, ads p.33

 

 

Notes: 

References:
The American Annual of Photography (Times-Bulletin) for 1904, The Anthony & Scovill Co., copyright 1903, ads p.33

 

 

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