Watch List notes:

Diocletian. AD 284-305. Antoninianus (21mm, 3.80 g, 11h). Lugdunum (Lyon) mint, 1st officina. 7th emission, spring AD 290-291. Radiate, draped, and cuirassed bust right / Jupiter standing left, holding Victory on globe and scepter, eagle standing at feet to left; –|–//A. RIC V 27; Lyon 307. Silvered, toning, minor die breaks on reverse. EF.

From the D.K. Collection.