拍品專文
The prototype exists in numerous versions, both in the direction of the present copy and in reverse. One, in the same direction as the present lot, on canvas, 65.1 x 47 cm, was sold at Christie's London, 9 July 1999, lot 207, ill. A prime version in reverse is in the Pinacoteca, Cesena, inv. no.33 (F. Mac de Lpinay, Giovan Battista Salvi "Il Sassoferrato", 1990, p.62, no.14, ill).