Strong obverse strike, well-centered with clean details & all text.

Publia Licinia Julia Cornelia Salonina (died 268, Mediolanum) was an Augusta of the Roman Empire, married to Roman Emperor Gallienus and mother of Valerian II*, Saloninus, and Marinianus.

RIC 59[j]Salonina Billon Antoninianus. Milan mint, 256-257 AD. Joint Reign of Gallienus.

Salonina antoninianus. Milan. Joint Reign of Gallienus.
  Obv: SALONINA AVG, Diademed draped bust right on crescent
  Rev: PIETA-S AVGG**, Empress seated left, reaching down
to two children standing before her. (No child at her side)

RIC 5-1 59 Milan, Joint Reign. Sear 10647. Cohen 84. 257-258 AD.

* Valerian II: Publius Licinius Cornelius Valerianus (died 258), was the eldest son of Roman Emperor Gallienus and Augusta Cornelia Salonina who was of Greek origin, and grandson of the Emperor Valerian who was of a noble and traditional senatorial family.

** AVGG. Duorum Agustorum.--Two Gs after AV signify two Augusti or Emperors reigning together.
Emperor Gallienus rules alongside his father, Valerian I