Watch List notes:

Hostilian, as Caesar, 250-251. Aureus (Gold, 19 mm, 4.21 g, 7 h), Rome. C VALENS HOSTIL MES QVINTVS N C Bare-headed and draped bust of Hostilian to right, seen from behind. Rev. PRINCIPI IVVENTVTIS Hostilian, as prince of the youth, standing left in military attire, holding baton in his right hand and short transverse spear with his left. Calicó 3318a (same dies). Cohen 37. RIC 183b. Very rare. A well-centered example with a charming portrait. Minor traces of mounting, otherwise, very fine.