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NOAA Photo Library Image - ship4017

Figure 14. W. F. Ewald's and K. Grein's photometer. Left: view of the apparatus. Right (from top to bottom): messenger container; removable photographic plates; removable filters. This instrument was designed by Wolfgang F. Ewald with the aid of Klaus Green. It was first tested off Capri and put to the definitive tests off Monaco in up to 500 meters.

Image ID: ship4017, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: P. Roggero
Credit: Oceanographic Museum of Monaco

Category: Oceanography/Historical instruments/

High Resolution Photo Available





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Last Updated:
April 30, 2013