Watch List notes:

Diocletian (284-305), Argenteus, Ticinum, c. AD 294; AR (g 2,77; mm 19; h 12); DIOCLETI - ANVS AVG, laureate head r., Rv. VICTORI - A SARMAT, six-turreted camp gate in front of which the four tetrarchs swear over tripod. RIC 12a.
Iridescent cabinet tone, high relief, about fdc.