Green patina.
Provincial Rome
Egypt, Alexandria, Probus (276-282), Tetradrachm 277-278, Alexandria mint
Obverse: laureate bust right
Α Κ Μ ΑΥΡ ΠΡΟΒΟC CЄΒ
Reverse: Eagle with spread wings standing front, head to right and holding wreath in beak, in the fields L-Γ (3rd year of reign)
Diameter 19 mm, weight 8.64 g