Inscribed by the artist, as title, lower right. Although not specifically identified, this may be the same incident as shown more distantly on PAE0052 and possibly the following one. On 18 March 1904 the submarine 'A1' (1902) was sunk in collision with the merchant ship 'Berwick Castle' off the Nab lightship, west of the Isle of Wight. On 18 April the boat was raised off the bottom in great secrecy, towed inshore to St Helen's Roads, lifted to just below the surface and then brought into Portsmouth, still in this almost completely submerged state. She was dry-docked well after dark and the bodies of her crew removed. 'A1' was subsequently repaired and put back into service, being paid off and sunk as a target in 1911. No photographs of this salvage operation have yet been found and if this drawing records it, it shows the boat already at the surface rather than being held submerged as was the case. However, the heavy-lift barges appear to be wooden and the tugs appropriate for that date.