. "Fotografia \"National Gallery of Art, Washington , Raphael. Umbrian 1483-1520. The Niccolini-Cowper Madonna. Andrew Mellon Collection 1937\", positivo - esemplare"@it . . . . "1" . . . . . "Photograph \"National Gallery of Art, Washington , Raphael. Umbrian 1483-1520. The Niccolini-Cowper Madonna. Andrew Mellon Collection 1937\", positive - exemplar"@en . . .