if you can get the drive side (RH side) crank off there's a good chance of something stamped on the edge or face of that "cup" but also looks like a Shimano BB so you might have to remove the BB unit to read any info off a label on the main body...do you have the special tools for all this? If not maybe a friend or friendly bike shop is the next stop...you can't do these jobs with common household tools I'm afraid, especially if you encounter RUST and CORROSION (which I bet you will).

EDIT: Just looked at some Sannino frames and all seem to use a distinctive stay cap (sort of like Gios but not exactly) and nothing like the OP's...plus the "S" on the forkcrown is also very different, so very doubtful it's a Sannino.