Papers on Mavis Batey's work deciphering Italian Naval enigma codes (including a message about an attack on a Royal Navy convoy) and the Battle of Matapan, 28-29 March 1941, including photocopies of naval telegrams. With typescript article entitled 'A Very Personal View of Matapan', by Mavis Batey. Also includes correspondence from Captain Hugh Lee, Admiral M. Maradino of the Stato Maggiore della Marina Ufficio Storico, and Admiral Sir Jock Slater of the Imperial War Museum, and copy of the Friends of Bletchley Park Newsletter.