eyck - The Ghent Altarpiece- The Offering of Abel and Cain. 1425-1429. Oil on wood. width 37 cm. Cathedral of St. Bavo, Ghent, Belgium eyck - The Ghent Altarpiece- The Offering of Abel and Cain. 1425-1429. Oil on wood. width 37 cm. Cathedral of St. Bavo, Ghent, Belgium