Paragon Exposure Calculator

Made:
1910
Paragon Exposure Calculator

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Science Museum Group
© The Board of Trustees of the Science Museum

Paragon exposure calculator, c. 1910.

Details

Category:
Photographic Technology
Object Number:
1976-593
Measurements:
overall: 106 mm x 145 mm x 3 mm, .028 kg
type:
calculators