Watch List notes:

Divus Claudius II Gothicus. Died AD 270. Antoninianus (22mm, 3.56 g, 12h). Siscia mint, 2nd officina. 1st emission of Aurelian, circa late AD 270-early AD 271. Radiate and cuirassed bust right / Altar; –/–//S (horizontal). RIC V 257 var. (bust type); RIC Online 1291 (this coin cited). Near EF, green patina, cleaning marks in field. Very rare with horizontal officina mark.

From the Finn Johannessen Collection, purchased from Cheryl Strohl, 12 August 2003.