I have an older bianchi. Made in Italy with mondolo mach 1 1 brakes, campagnolo shifters, strong light cranks and derailleurs, wheels described as elite 19 duralex marchio depositato allumag monocellular. Only numbers are 7.8 14 on one side and 4586 other side.

im trying to determine age as I’m guessing I purchased it in late 70’s

im thinking it is a formula 2

ramjet