Medieval Bulgarian Coin of Ivan Alexander (Emperor “Tsar” of Bulgaria: 1331-1371 A.D.) & Michael Asen IV Struck 1331-1355 A.D.Obverse: Ivan Alexander and his son, Michael Asen, flag in between, the names of the two emperors in monogram form on left and right.Reverse: Christ standing facing full-length, blessing with two hands.Weight: 1.03 g. Diameter: 20 mm