Watch List notes:

Pergamum, Attalus I; 241-197 BC, Tetradrachm, 16.89g. Westermark-V.XV. Obv: Head of Philetairos r., wearing laurel wreath entwined with diadem. Rx: ΦIΛETAIPOY downwards on r., Athena wearing crested helmet seated l. on throne, extending her r. arm to hold top of shield ornamented with gorgoneion before her, and holding transverse spear with l. arm; a sphinx serves as armrest below her l. elbow, and the seat of her throne is marked with AΘ monogram; in field below her r. arm, ivy leaf; bow in r. field. G