Bring Me the Minions!
Crew members of the submarine HMS C7 wearing their Rees Hall escape apparatus, dating from the 1900s. “There is no record of the apparatus ever having been used.”
HMS C7 was a underused early experimental type of coastal submarine designed by the Royal Navy before World War One. Only 143-feet long and of 316-tons submerged, she carried but two smallish torpedoes, could stay under for about ten hours, and reach a speed of just 12-knots on her extremely dangerous gasoline engine. Commissioned in 1907 she was in reserve by WWI and scrapped in 1919.