Recovery of the U.S.S. Squalus

Securing flood valves	Preparing to sink a pontoon	Salvage model	Aground at 90 feet .Just before de-parting Bow
Diver's bubbles	H2O2 manifold	Aground at 190 feet	U.S.S. Sacramento
Pontoon being submerged	Auxillary Blow Manifold	Bringing pontoon alongside	Pontoons (Double exposure of film)