[Bruce Dennis]

Besides those already mentioned, there is quite a lot of translated decrypted material from Italy at the National Archives, Kew on microfilm in the DEFE series. There may be a mixture of decrypts from different sources, but it should be possible to tell from the individual message which were Enigma and which came from other lower-grade transmissions.

The files are:

DEFE 3/832 to 870, TELEPRINTED TRANSLATIONS OF DECRYPTED ITALIAN NAVAL TRAFFIC. JUNE 1941-SEPTEMBER 1943 plus DEFE 3/893 1941 June-1942 Nov 19.

Although I cannot remember specific file numbers, I am pretty sure some of the ‘Cairo’ series of translations also included some from Italian sources.

Hope this helps,
Bruce