Watch List notes:

Gallienus (253-268). Antoninianus (23mm, 2.67g, 6h). Mediolanum, AD 264. Radiate and cuirassed bust r. R/ Securitas standing l., holding globe and sceptre, and leaning on column; P to r. RIC V 504. Scarce, near VF
Estimate: 10 GBP