Silver Egyptian Struck Owl, Luster! 5th-4th century BC, Tetrdrachm, NGC Mint State strike 4/5, surface 3/5Silver Egyptian Struck Owl, Luster! 5th 4th century BC, Tetrdrachm, NGC Mint State strike 4 5, surface 3 5 Athenian Owls were the currency that enabled international commerce to flourish during the 4th and 5th centuries B. C. The Pelopennesian war with Sparta resulted in reduced production of Owls from the Athenian mint. Egypt's best artisans worked to resolve the shortage by minting their own coinage for a brief period of time. We made trips to coins