Sub S-4's Conning Tower as she was being towed into Boston Harbor after being rammed and sunk by USS Paulding.

Tug Falcon raising the sub S-4 off Provincetown |
Conning Tower of the S-4 after being raised and brought to Navy Yard. |
Bow view of ill-fated sub S-4 in drydock. |
Sub S-4 floated with pontoons, at Navy Yard |
Conning Tower with flag at half mast, sunken sub S-4 at Navy Yard |
Sub S-4 comes to surface off Provincetown after being on the bottom for 4 months in 102 ft. of water. |