Watch List notes:

Diocletian. AD 284-305. Antoninianus (21.5mm, 4.08 g, 6h). Lugdunum (Lyon) mint, 2nd officina. 2nd emission, spring-summer AD 286. Radiated, draped, and cuirassed bust right / Jupiter standing left, holding thunderbolt and scepter; B|–//–. RIC V 43; Lyon 54. Brown surfaces, some shallow scratches. VF.

Ex Davisson's (with ticket).