Alexander III, AR drachm, posthumous issue struck under Antigonos I Monophthalmos. Sardes, 319-315 BC. 17 mm, 4.27 g.

Head of Herakles right, wearing lionskin headdress.
ALEXANDROY, Zeus seated left, holding eagle and sceptre.

K in wreath (or Omega) in left field, HA monogram beneath chair. (The HA monogram often resembles HD).

Price 2683; Müller 1690; GRPY Lydia S165. 

With permission of Roma Numismatics E-Sale 58, Lot 184, June 2019.