Diocletian. As Senior Augustus, AD 305-311/2. Æ, 19mm, 4,43 g. Antioch mint. Struck AD 305. Laureate bust right, wearing imperial mantle, holding olive branch and mappa / Providentia standing right, receiving olive branch from Quies standing left, holding sceptre; A//ANT:. RIC VI 77a.
The coin is a scarce type of Diocletian's long coinage, and represents his abdication.