Painting on the rock, Wall painting by Christophorus at the Oratoire de Saint-V?r?d?me, Fig. 2, p. 8, Revoil, Henry (dessin?e), Henry Revoil: Architecture romane du Midi de la France: dessin?e, mesur?e et d?crite. Bd. 1. Paris: Vve A. Morel & Cie, Li