I am an amateur, but even to my eye I think it is unlikely to be real.
First steps would be find a jeweler or coin dealer who can assess the gold content without harming the coin - if it is gold, then at least you have some value there and should find a real expert.
The reason I am very skeptical of the coin is - if real - it is the rarest version of an already rare coin. The reverse doesn't look right; in particular my eye caught the transition at the bottom of the fasces, the top of the axe blade, the ram's mouth, and the font in "OTTOBRE." Lots of other little details too, although it could easily be an untrained eye looking for problems.
Good luck and maybe someone else here with more experience will give you better news (and me a lesson).
New to swapping - bear with me! More coins up for swap soon.