Watch List notes:

Postumus (259-268). Barbarous AE 25 mm. Celtic Danubian mint (?). Obv. IMP C POSTVMVS PF AVG. Radiate and draped bust right. Rev. SALVS [...] Celtized Aesculapius standing left, drawing towards him serpent rising from the ground. Cf. RIC V 165 (Sestertius). AE. 8.91 g. 25.00 mm. R. Rare and interesting. Dark green patina. VF.