The aircraft in the picture is the Breda CC20, a prototype bomber built in the late 20s answering a competiton by Regia Aeronautica. Other prototypes built to the same specification were two Capronis, Ca. 79 and Ca.90, and the Fiat BRG. Aerofan run an article on these Italian giants in early '80s, and the photo has been scanned from Aerofan. The CC3000 was an outgrowth of the CC20 with either more engines or more powerful ones. Already discussed, but no drawing yet.