Watch List notes:

KINGS of PERGAMON. Attalos I. 241-197 BC. AR Tetradrachm (31mm, 16.80 g, 12h). In the name and types of Alexander III of Macedon. Struck circa 210/05-197 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; star and AI monogram in left field. Kleiner, Alexander, Series XVII, dies S/– (unlisted rev. die); SNG BN –; Price 1489 corr. (AI as monogram); Maktipini 279 (same obv. die). Good VF, toned. Extremely rare, none in Pella, CoinArchives, or ANS photofile, only four recorded by Kleiner, all in the Mektipini hoard.

From the Colin E. Pitchfork Collection. Ex Superior (2 June 1998), lot 6411.