HMS Bulldog - Operation Primrose by Ivan Berryman. (PC)

The Spring of 1941 saw the German U.110 damaged from previous attacks and, on 9th May, she was forced to the surface and surrender to HMS Bulldog. U.110 was carrying the top secret Enigma Machine and code book and her capture helped Bletchley Park codebreakers solve Reservehandverfahren, which was a reserve German hand cipher. U.110 was taken in tow but was deliberately sunk to prevent its capture being revealed to the enemy.

Collectors postcard - first edition of 90 cards.

Postcard size 6 inches x 4 inches (15cm x 10cm)