Watch List notes:

The Roman Empire

Diocletian, 284 – 305. Aureus, Cyzicus 284-286, AV 4.44 g. IMP C C VAL DIOCLETIANVS P F AVG Laureate, draped and cuirassed bust r. Rev. MAR – TI VLTORI Mars advancing r., holding spear and shield. C 319 var. (not cuirassed). RIC 300D. Lukanc 15. Depeyrot 2/4 var. (not cuirassed). Calicó 4548.
Almost invisible marks on obverse field, otherwise good extremely fine
Privately purchased from Bourgey in 1950. From the Pierre Bastien collection.