Watch List notes:

The Roman Empire

Hostilian caesar, 251. Aureus 251, AV 3.89 g. C VALENS HOSTIL MES QVINTVS N C Bareheaded and draped bust r. Rev. PRICIPI IVVENTVTIS Hostilian, in military attire, standing l., holding wand in r. hand and spear in l. C 37. RIC 183b. Calicó 3318a (these dies).
Very rare. A gentle portrait of fine style struck on a full flan, extremely fine
Ex UBS 50, 2001, 3 and Gemini IX, 2012, 517 sales. From the George C. Hopkins collection.