Watch List notes:

Egypt, Alexandria. Probus. A.D. 276-282. BI tetradrachm (21.5 mm, 7.78 g, 11 h). Alexandria mint, Struck A.D. 276/7. A K M AVP ΠPOBOC CЄB, laureate and cuirassed bust of Probus right / Eagle standing left, wings closed, head right , wreath in beak; L - B ( = yr. 2 = A.D. 276/7 ). Emmett 3984. Good VF, dark green/brown patina.

Ex Leo Hamburger 1890's.

This coin comes from a large group of Roman Provincial, Byzantine and Vandalic coins which were part of Leopold Hamburger's inventory. More information on Mr. Hamburger can be found here:https://www.coinbooks.org/v20/esylum_v20n42a19.html