Watkin standard meter

Made:
Hereford
maker:
Watkins Meter Company

Watkins standard meter. Cylindrical form actinometer, end cap on chain forms 1 sec. period pendulum. Wooden paper holder at other end under mask with tint segment and blue glass. Three rotating calculator rings.

Details

Category:
Photographic Technology
Object Number:
1990-5036/513
Materials:
brass, glass, paper (fibre product)
type:
actinometer
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
credit:
The Kodak Collection at the National Media Museum, Bradford
status:
Permanent collection

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