Marine accidents
 USS Wright sails into Boston with pontoons from Norfolk, VA, to assist in raising the S-4 |
 S-4 disaster: Giant crane 'Hercules' removing pontoons from USS wright |
 Submarine S-4 in drydock at Navy Yard |
 Sub S-4 tied up at pier at Navy Yard just before entering drydock |
 Sub S-4 with old glory at half mast, Navy Yard |
 Sub S-4 tied up at Pier 7, to remove her batteries and engines |
 Old Glory at half mast on Conning Tower of the sub S-4 at Navy Yard |
 Sub S-4 in drydock at Navy Yard |
 Sub S-4 battery room where several of the crew met instant death when salt water reached the batteries and made chlorine gas |
 Tugs that took an active part in raising the sub S-4. |
 Tug Falcon raising the sub S-4 off Provincetown |
 Navy tug 'Sagamore' with pontoons, at Provincetown to raise sub S-4 |
 Sub S-4 floated with pontoons, at Navy Yard |
 Ill-fated sub S-4 in dry dock at Navy Yard |
 Ill-fated sub S-4 in dry dock at Navy Yard |
 Submarine S-4 in Navy Yard drydock |
 Submarine S-4 in Navy Yard drydock |
 Tug 'Falcon' that raised the submarine S-4 |
 Navy crane 'Hercules' with boilers from the ill-fated sub S-4 |
 Boilers from the sub S-4 on Navy Yard crane 'Hercules' |
 Sub S-4 in dry dock at Navy Yard |
 Sub S-4 in Navy Yard dry dock |
 Conning Tower with flag at half mast, sunken sub S-4 at Navy Yard |
 Sunken sub S-4 at Navy Yard |
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