WWII Kriegsmarine U Boat Badge – U13
This would not be the end of the story for the U-13 however, as the Germans were so concerned that the secret of their enigma code might fall into British hands that on June, 12 1940 their air force carried out a bombing raid on the spot where they believed the submarine was lying.
Despite the raid, Skipper Lieutenant Arthur C Offord RNR of the Royal Navy Patrol Service later transported a team of Royal Navy divers to the scene to conduct a salvage operation on the wreck.
Their role was to search the U-boat for anything that might prove useful to naval intelligence, and it is believed they managed to find some code books, which were passed onto those at Bletchley Park.
An enigma code wheel was also recovered from a crew member who had forgotten to drop it into the water after abandoning ship.
Soon after the U-13 wreck was blown up as it was a danger to shipping in the relatively shallow waters off the Suffolk coast. Today the scattered remains are almost completely buried in sand.
Despite this, the Lowestoft Sub-Aqua club have dived the wreck and have retrieved some parts , a set of German leathers and transcripts of the interrogation reports.
Lowestoft War Memorial Museum has artefacts on display that have been retrieved from this submarine.