You could take an Arc Welders torch and try it on that coin. If it melts into a Silver ball, it was Silver. 
OR you could dip it in concentrated Nitric Acid. If it turns into a pile of Silver Nitrate, it WAS Silver.
If you drill a hole in the center and look inside that hole, it should be all Silver if the coin is all Silver.
Or take everyone's word for it that it has been plated.
OR you could dip it in concentrated Nitric Acid. If it turns into a pile of Silver Nitrate, it WAS Silver.
If you drill a hole in the center and look inside that hole, it should be all Silver if the coin is all Silver.
Or take everyone's word for it that it has been plated.
























