If you post this in other venues, it might at least help show that you're somewhat in touch with reality by prefacing it with something like -
"Look, I know there is probably a one in ten million chance that someone in the USA will have a 1959 manual for this super obscure Italian machine, and that this person will actually be willing to dig it out, and sell or copy it, but what the heck, doesn't hurt to try, right ?"
For what it's worth, I just looked and to my amazement, ~I~ have the sales brochure for the Ficep "Universal Punching & Shearing Machines"...dated 1957. Sold by the Maserati Corp of America, Westbury, NY. Looks like you have a "No. 20" machine judging from your 1/2 x 6 angle capacity.
But sales brochures are one thing, finding old and obscure ~manuals~ are quite another. Machinerymanuals.com might have it, but be prepared to pay the piper.