Watch List notes:

The Hardcastle Collection | Roman Empire, Salonina, wife of Gallienus, AR Antoninianus, 3.41g, Cologne, struck AD 257-258, diademed and draped bust on crescent moon right, rev. Venus seated left (RIC 7), struck on a large flan with verdigris spotting, otherwise very fine with a good portrait.
Concievably from a hoard found in the environs of York at the turn of the last century
Estimate: £20 - £40