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Exhibit on echo sounder.

Exhibit on echo sounder.
Exhibit on echo sounder.
Exhibit on echo sounder.
Exhibit on echo sounder.
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156958
Hahn, Jan
Exhibit on echo sounder.
Still Image
01/01/1955
archives/ExhibitsHahn/mc74-2478.tif
Date is approximate.
Photo by Jan Hahn
© Woods Hole Oceanographic Institution
Jan Hahn Collection, MC-74, acquired by the Data Library and Archives November 24, 1992. Date range of photographs, 1947-1972.
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