Dawson's Densitoometer

Two ground glass windows in wooden box; one lit by light passing through test sample, the other by light passing trhough disc with holes of graduated size. In original carton.

Details

Category:
Photographic Technology
Collection:
Kodak Collection
Object Number:
1990-5036/7944
type:
densitometer
credit:
The Kodak Collection at the National Media Museum, Bradford