 Unsuccessful attempt to raise the S-51 sub. Pontoons were later used |
 Raising the sub S-51 off Point Judith. |
 Towing sub S-4 to Navy Yard. |
 Sub S-4 being towed into Charlestown Navy Yard after being floated by pontoons off Provincetown. |
 Sub S-4 being towed to Navy Yard from off of Provincetown. The trip took 14 hours to go the 49 miles. |