For me most of these Spanish 8 Reales coins look suspect. I have a 1783 8 Reales coin and it's a El Cazador ship wreck coin and it's slabbed. These coins are heavily faked and slabbed gives you some peace of mind.
I’m thinking this 1783 Mexico, FF 8 reales is fake but wondering what others think. Weight comes in at 24.81 and some diagonal marks on the edge which I’ve read could indicate a fake. I am curious if it could be an older fake which I’d be ok with