Watch List notes:

ANCIENT COINS, ROMAN, Postumus (AD 259-268), Double Sestertius, radiate head right, rev Hercules standing, poor; Sestertius, radiate bust right, rev galley (RIC 143), fair; other Sestertii of Postumus (2), about fine. (4)
ex W C Boyd Collection, Baldwin's Auction 42, 26 September 2005, lot 648

Estimate: £120-160