Past collectors commonly mistook Passerotti’s academic studies from the nude for the work of the Florentine Bandinelli (1493-1560). The handling of this drawing is after him in this technique in the Museo del Prado collections.

The feeble outline study in pen and ink drawn on the verso, showing the recto figure in the same pose but from the front, is by a later, weaker hand.

Turner, Nicholas, From Michelangelo to Annibale Carracci. A century of Italian drawings from the Prado, Chicago, Art Services International, 2008, p.341