Aemilian. AE Sestertius. AD 253. 22.09 g. Rome mint. 

IMP CAES AEMILIANVS P F AVG, laureate, draped and cuirassed bust right.
ROMAE AETERNAE, S–C, Roma standing left, holding phoenix on 
globe and spear; shield at her side. 

RIC 50; Cohen 42 var. (AETERN); Sear -. 
Very rare.

With permission of Numismatica Ars Classica, March 2010.