Watch List notes:

KINGS of PERGAMON. Philetairos. 282-263 BC. AR Tetradrachm (30mm, 16.62 g, 12h). Struck circa 269/8-263 BC. Laureate head of Philetairos right / Athena enthroned left, holding shield in right hand, left elbow resting on sphinx seated right; spear diagonally in background, ivy leaf above knee, bow to outer right, A on throne. Westermark Group II (unlisted dies; Eumenes I); SNG France 1606-9 (Eumenes I). VF, peripheral toning, minor surface roughness.

From the Demetrios Armounta Collection. Ex Classical Numismatic Group Electronic Auction 202 (14 January 2009), lot 64.