University of California Division of War Research illustration of sonar reverberation... ping. 1944

• U.S. Navy

This digital image is a surrogate of an item from the Robert William Young Papers, 1920-2002

• Illustrations

• image

Public Domain

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Special Collections & Archives, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/sca)

2020-10-27