Watch List notes:

MYSIA. Pergamum. Saloninus, as Caesar, 258-260. Diassarion (Bronze, 24 mm, 6.87 g, 12 h), brockage mint error. Π•K•CA•OYAΛЄPIANOC•KA Bare-headed, draped and cuirassed bust of Saloninus to right. Rev. Incuse of obverse. Cf. SNG Paris 2307 corr. (misattributed to Valerian II). A beautiful brockage mint error of a very rare Provincial issue of Saloninus. Earthen deposits, otherwise, very fine.