 An impression of the complete work is given by an 18th-century copy in the Pinacoteca Comunale, Città di Castello.Preliminary sketches by Raphael can be found in the Palais des Beaux-Arts de Lille, Lille and the Ashmolean Museum, Oxford.On the basis of these drawings it is assumed that the design of the altar was entirely Raphael's work, whereas in the execution he was joined by Evangelista da Pian di Meleto.