Got my hands on this Syracuse tetradrachm recently, and i'm having a hard time telling if it's legit or not. It was a good deal, but i'd rather send it back if i can't confirm with 90% certainty it's a real one (this coin is one of the most faked one).
The coin have been soldered in 4 differents points to become part of an old necklace, the edge have been heavily sanded and shaved to fit an approximatively round support, and the coin's surface is heavily worn down and got harshly cleaned over a long period of time.

What i can say from observation :
>couldn't see any seam line from casting (but it's maybe simply too sanded/shaved)
>coin definitely is in silver
>shape and volume feels right
>lightweight compared to a non damaged tetra from Syracuse (14g instead of 16.5/17g), but could match with all the wear and shaving
>details are matching the phi type (pretty unusual version, all fakes have seen online are of the much more commons NK or NI types)
>wear seems natural
>what remains of the cracks/folds in the beading looks OK, but it's hard to tell

what do you guys think? (newfags don't need to answer, i want pros).