Watch List notes:

KINGS of MACEDON. Philip III Arrhidaios. 323-317 BC. AR Tetradrachm (26.5mm, 17.06 g, 5h). In the name and types of Alexander III. Pella mint. Struck under Antipater or Polyperchon, circa 323-318/7 BC. Head of Herakles right, wearing lion skin / Zeus Aëtophoros seated left; vertical thunderbolt in left field, I below throne. Price 232 var. (no letter below throne); Moore 179 corr. (dies 55/I; letter not noted) = ANS 1944.100.29386 (same dies). VF, lightly toned. Extremely rare variety, only the ANS piece published.

From the Colin E. Pitchfork Collection. Ex Gorny & Mosch 122 (18 March 2003), lot 1235.

The I below the throne on this die