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https://www.noaa.gov/media/digital-library-photo/pl23ship4083jpgDescription
Figure 18. Net closure device invented by Baron Jules De Guerne and Paul Dumaige and first tested in the east Atlantic in 1886 in 31 meters waters depth.Left: closed. Right: open. (Image credit: Oceanographic Museum of Monaco | D. Mille)
Credit
Oceanographic Museum of Monaco
Photographer
D. Mille
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Biologic Sampling Apparatus
Keywords
Oceanography
Historical instruments