Watch List notes:

Diadumenian (Caesar, 217-218). Seleucis and Pieria, Antioch. Æ As (19mm, 4.20g, 12h). Bare-headed and cuirassed bust r. R/ S • C, Δ above, Є below; all within laurel wreath fastened at top with diamond. McAlee 745a. Brown patina, Good VF