Watch List notes:

Koinon of Macedon. Time of Gordian III, 238-244. Triassarion (Bronze, 25.5 mm, 13.89 g, 1 h). Beroia in Macedon. AΛEΞANΔPOC Diademed head of Alexander the Great to right. Rev. KOINON MAKEΔONΩN B NE Alexander in military attire, holding spear with his right hand and with his left holding the reins of Boukephalas running to right. AMNG 499a var (reverse legend). SNG Copenhagen 1355. Perfectly centered, well-struck and with a fine brown patina. Nearly extremely fine.

The depiction on the reverse brings in mind the famous Alexander mosaic from the house of the Faun in Pompeii.