Professor Jaap Bolten has, on the basis of photographs, kindly confirmed the attribution of this and the following lot, and pointed out the prints made after them. He dates the drawings to 1605-6, and compares them to a similar drawings of this period in the Fondation Custodia, Institut Néerlandais, Paris (K.G. Boon, The Netherlandish and German Drawings of the XVth and XVIth Centuries in the Frits Lugt Collection, Paris, 1992, I, nos. 8-9, III, pls. 278-9). The drawings clearly show the influence of artists such as Goltzius (see Boon, op. cit., I, no. 104, III, pl. 144)