Watch List notes:

EGYPT, Alexandria. Maximianus. First reign, AD 286-305. Potin Tetradrachm (19mm, 7.99 g, 1h). Dated RY 6 (AD 290/1). Laureate, draped, and cuirassed bust right, seen from behind / Herakles standing front, head right, leaning on club to right resting on rock, star in upper left field; L Ϛ (date) across fields. Köln –; Dattari (Savio) 5209; K&G 120.47; Emmett 4134.6. Red-brown patina with green highlights. Good VF. Very rare, only three at CoinArchives.