Title:
Sigsbee Sounding Machine; invented by Charles D. Sigsbee;
Caption:
Sigsbee Sounding Machine; invented by Charles D. Sigsbee and modified from Thomson Sounding Machine.. Here the sounding machine is used to set a Pillsbury current meter at a known depth
Credit:
Album / Universal Images Group / Universal History Archive
Image size:
3917 x 5354 px | 60.0 MB
Print size:
33.2 x 45.3 cm | 13.1 x 17.8 in (300 dpi)
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