Watch List notes:

ANCIENT THEMES. Didius Julianus. AD 193. Cast Æ Uniface Medal (37mm, 18.32 g). By an uncertain German school (circa 16th century). M DITIVS IVLIANVS, high relief laureate bust left; numeral "20" to left; all on cabled field / Rouletted blank reverse. See Artemide Aste Auction LI, lot 763 ( for a Pertinax number "19"). Brown surfaces, edge chipped at 2 o'clock. EF.