Sjoelund
I believe you should invest in a caliper and scale with precisions of 0.01 mm or gram.
Did you look your coin up in our catalog?
Numista coin page for reference: N#111
Yes, precision calipers and scale would help establish the coin's authenticity (or lack thereof)…
If OP is an avid collector aforesaid tools may be worth the investment, otherwise not so much.
PS: to me it looks like a normal euro coin with a case of road rash.