Prosch
Prosch Mfg. Co. was a shutter maker based in New York. In the 1880s and the 1890s it made brass shutters with adjustable spring tension for manipulation of shutter speed.
Shutters
- Duplex
- Triplex
- Columbian Triplex
- Athlete
Links
- Tristram Ludwig collection showing American Optical Co. cameras with Prosch shutters