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Figure 20

Figure 20. Color measuring lens of Julien Thoulet designed in 1903 as per the intention of Prince Albert 1st of Monaco. Thoulet tested this instrument at the laboratory at Nancy. It is possible that this instrument was also tested on the PRINCESS ALICE II in 1905.

Photo Category: Oceanography - Historical instruments

Author: P. Roggero/Oceanographic Museum of Monaco/ NOAA

License: Public Domain Mark 1.0 (Public domain)
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Added On
18th October 2015
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