A salvage pontoon surfaces during an attempt to lift Squalus from the sea bottom off the New Hampshire coast, in the Summer of 1939. USS Falcon (ASR-2) is at the left. This appears to be the 13 July 1939 lift, in which Squalus' bow rose uncontrollably to the surface and then sank. If that is the case, the pontoon visible here is probably one of the two pontoons of the lifting lines attached to the sunken submarine's bow. Official U.S. Navy Photograph.