Watch List notes:

Claudius II Gothicus. AD 268-270. Antoninianus (21mm, 3.95 g, 6h). Cyzicus mint, 3rd officina. 2nd emission, circa mid AD 269. Radiate head right; ••[•] below / Securitas standing left, with legs crossed, leaning on column and holding scepter; M/C//–. Normanby –; RIC V –; RIC Online 891 = J. Mairat, "L'ouverture de l'atelier impérial de Cyzique sous le règne de Claude II le Gothique," RN 163 (2007), 37.1 (this coin, illustrated on pl. LII). EF, dark green patina, traces of silvering. Extremely rare and possibly unique with this bust type.

From the Finn Johannessen Collection, purchased from Uwe Winkler, 8 September 2006.