The preliminary study, in the same sense, signed with monogram, is in the Barber Institute of Fine Arts, Birmingham (Schnackenburg, op.cit., no. 216); another related drawing is in the Metropolitan Museum of Art, New York (inv. no. 52.626.1, possibly Schnackenburg, op.cit., I, p. 122, under no. 216). A picture of a comparable subject, signed and dated 1668, set in an interior, is in the Collection of Her Majesty the Queen, Buckingham Palace, London (Hofstede de Groot 460).