Watch List notes:

Postumus (The Gallic Empire, 260-269), Double Sestertius, Lugdunum, AD 261; AE (g 17,08; mm 34; h 6); IMP C M CASS LAT POSTVMVS P F AVG, radiate, draped and cuirassed bust r., Rv. LAETITIA / AVG, galley l., with four rowers. RIC 143; Bastien 87.
Brownish patina, large flan, about extremely fine.