Watch List notes:

Mariniana, wife of Valerian, AR Antoninianus, 254-256 AD, divae marinianae, diademed, veiled and draped bust right, on crescent, rev.consecratio, peacock flying right, carrying empress (RSC 16; RIC 6), very slight porosity on obverse, nonetheless lustrous, almost extremely fine.
Provenance
Bonhams sale 7, 29 March 1982, lot 433, £170 - "extremely fine"
Estimate: £150 - £250