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![Figure 49 ship4343.jpg Figure 49](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4343.jpg?itok=DM01YpFN)
Description
Figure 49. Tanner helical mounting devised by Commander Zera Luther Tanner, USN, commanding officer of the U. S. Fish Commission Steamer ALBATROSS. It is verysimilar to other types of helical mountings in its design and operation. Tanner reported that it was relatively light but was very robust in operation. (Image credit: Oceanographic Museum of Monaco | Y. Berard)