Watch List notes:

Diocletian. As Senior Augustus, AD 305-311/2. Æ Follis (26mm, 9.89 g, 12h). Abdication issue. Serdica mint, uncertain officina. Struck AD 305-306. Laureate bust right, wearing imperial mantle, holding olive branch and mappa / Providentia standing right, receiving olive branch from Quies standing left, holding scepter; S|F/[...]//•SM•SD•. RIC VI 14a. Toned partial silvering, light smoothing. VF.

From the Brian Holland Collection.