Central panel of a Crucifixion triptych, which would have served as a portable icon. Traces of gilding and blue pigment on St. John's robe and Christ's halo. Crucifixion with the Virgin (left) and St. John (right). Angels to left and right of Christ's head. Moon (left) and sun (right) above the baldachino. Plain columns with capitals and palm leaves support the baldachino.