"Bartolome Esteban Murillo. (Span. 1613-1685) Pilas. Madonna and child. 40 x 60. Original (no. 40) in the Pitti Gallery, Florence. It is called the 'virgin of the napkin,' from the fact that it is said to have been painted by Murillo, on a napkin, tendered to him as a canvas by the cook of the convent de la merced, Madrid, who begged for some artistic memento of him."
A Catalogue of Paintings in the Gallery of D.W. Powers, Rochester, N.Y. with Explanations and Sketches of Painters by C.C. Merriman. Rochester, N.Y.: E.R. Andrews, Book and Job Printer, Aqueduct Street, 1877.