Beretta 1935
Cal. 7.65mm
This is simply the model 1934 chambered for 7.65mm (32ACP).
It was principally issued in the air force and navy and, consequently, usually bears "RA" or "RM" on the frame. Examples sold commercially after 1945 were know as model 935.
Beretta 1934 and 1935
Beretta 1935