Nice OP Serapis ! And yes, a double sestertius is something you love to hold in your hand and feel its weight. I got that one in those early times, when they were in bargain bins... Postumus, Double sestertius struck in Cologne, AD 261 IMP C M CASS LAT POSTVMVS P F AVG, Radiate bust of Postumus right LAETITIA AVG, Galley travelling left 18.12 gr Ref : Cohen #177, RCV #11049 Q
Anyone that focuses on Gallic Empire coinage should endeavor to get a copy of this catalogue from 2016. The entire catalogue is dedicated to a specialist collection of Gallic Empire coinage. 951 lots, with every lot pbotographed and shown on the listing page (like a sylloge). It's destined to become a classic of this series.