A description of the sketch-book by Sir Anthony Van Dyck, used by him in Italy, 1621-1627 : and preserved in the collection of the Duke of Devonshire, K. G. at Chatsworth (1902)
Cust, Lionel, 1859-1929 · London : G. Bell · leaf 79
Van Dyck, Anthony, 1599-1641 · Devonshire, Spencer Compton Cavendish, Duke of, 1833-1908
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.