Attica Athens Tetradrachm Silver Coin

  
Attica Athens Tetradrachm Silver Coin. Weight fluctuating between 17 and 18 g my scales are not precise to weights of smaller size.

House clearance find with other old genuine coins, non magnetic and believed to be silver. Good condition for age, only able to guess that it is around 1500 years old. Please view photos for condition and size.