Watch List notes:

Diocletian, 284-305. Quinarius (Bronze, 15 mm, 1.83 g, 12 h), brockage mint error, Rome, 285. IMP DIOCLETIANVS AVG Laurate, draped and cuirassed bust of Diocletian to right, seen from behind. Rev. Incuse of obverse. Cf. RIC 193. A rare mint error on a rare denomination. Very fine.