Watch List notes:

KINGS OF BOSPORUS. Rhescuporis II, with Caracalla, 211/2-226/7. Stater (Electrum, 18 mm, 7.63 g, 11 h), BE 513 = 216/7. BACIΛЄωC ΡHCKOΥΠOΡIΔOC Diademed and draped bust of Rhescuporis II to right; before, trident. Rev. ΓΙΦ Laureate and draped bust of Caracalla to right. MacDonald 556/3. Very fine.