Watch List notes:

KINGS of PERGAMON. Attalos I. 241-197 BC. AR Tetradrachm (28mm, 16.87 g, 11h). In the name of Philetairos. Pergamon mint. Struck circa 241-235 BC. Laureate head of Philetairos right / Athena enthroned left, resting on shield to right, holding transverse spear; palm frond to outer left (only traces visible), monogram to inner left, bow to outer right. Westermark Group VI:A, dies V.XC/R.1; SNG BN –. Lightly toned, scattered marks and hairline scratches. VF. High relief portrait.

Ex Demetrios Armounta Collection (Classical Numismatic Group Electronic Auction 326, 7 May 2014), lot 109; Freeman & Sear 15 (27 June 2008), lot 116.