Watch List notes:

EGYPT, Alexandria. Volusian. AD 251-253. Potin Tetradrachm (23mm, 9.73 g, 12h). Dated RY 3 of Trebonianus Gallus (AD 252/253). Laureate, draped, and cuirassed bust right / Radiate and draped bust of Helios right; L Γ (date) across field. Köln 2843-4; Dattari (Savio) 5127; K&G 84.6; Emmett 3684.3. Toned surfaces with an area of red and green corrosion on the obverse. VF. Partially silvered and rare as such.

From the Rocky Mountain Collection of Alexandrian, purchased from William M. Rosenblum.