Giulio Bora confirmed the attribution to Procaccini in a letter dated 5 March 1992, connecting the drawing to an Adoration of the Magi painted in 1611, H. Brigstocke, Giulio Procaccini reconsidered, Jahrbuch der Berliner Museen, XVIII, 1976, pp. 101, fig. 13. A series of drawings close in handling and also related to an Adoration are in the Ambrosiana, G. Bora, Il Seicento Lombardo, Catalogo dei Disegni, exhib. cat., Pinacoteca Ambrosiana, Milan, 1976, nos. 64-78, illustrated.
A number of sheets similarly drawn on two levels, and with a similar use of the pen, are published by Nancy Ward Neilson, By and about Giulio Cesare Procaccini, Master Drawings, 1979, XVII, pp. 280-4, pl. 44-49.