Diadumenian, AR aureus. Rome. AD 217-218. 7.34 g. 

M OPEL ANT DIADVMENIAN CAES, bare-headed, draped and cuirassed bust right.
SPES PVBLICA, Spes walking left, holding flower and raising the hem of her robe.

RIC 115; Cohen 22; Calicó 2984; Weber 1964 (this coin).
Ex Weber collection, Hirsch sale XXIV, lot 1964.
Very rare.

Sold by Áureo & Calicó auction 300, Lot 145, Nov 2017.