Raphael Sanzio : la Vierge de l'Incarnation ou Vierge au sein : peinture sur bois signé du maître et seule exécution de deux études authentiques bien connues, La Madone allaitant : documents complets relatifs à la certitude de l'authenticité de ce tableau
A scholarly 1891 Lausanne monograph by Louis Nicole, published by Georges Bridel, arguing for the authenticity of a Raphael Madonna painting and documenting its attribution for art historians and specialist readers. The three plates reproduce Madonna and Child compositions in engraving-like halftone: a painted Virgin with the Christ child reaching toward a little John the Baptist, a dark sketchy seated mother nursing an infant against a distant town, and a line-drawn copy of a nursing Virgin in an arched frame. A designer could draw on the soft shading, the pyramidal seated figures, and the framed plate layout with its caption band.
