Watch List notes:

Hostilian as Caesar. 250-251 AD. AE 18.5, 3.70g (2h). Pisidia, Cremna, . Obv: IMP CAE[S] ME[SS] QVINTVM Bare-headed, draped, cuirassed bust right. Rx: P[R]O - P - COL - CR Apollo Propylaeus advancing right, cloak flying from shoulders, about to shoot arrow from bow. RPC 979 (7 spec.). Aulock, Pisidien 1491-6. Ex Ancient Art, Bruce Braun, List 4-77, July 1977, no. 63. A rare type, apparently struck from only this one die pair. Aulock points out that the same reverse die was later reused for Valerian I, his nos. 1524-6.