Greek. Silver Tetradrachm of Lysimachus, Pergamum, Obverse. 287 BC – 282 BC. Posted by sjsmithhls on 30 Apr 202030 Apr 2020 Greek. Silver Tetradrachm of Lysimachus, Pergamum, Obverse. 287 BC – 282 BC. American Numismatic Society. (Public Domain)