cf. Stephen A. Martin, ed., Archibald Knox, 2001, p. 233, top for an illustration of this model. See Stephen A. Martin, ed., Archibald Knox, 2001, p. 10; Stephen A. Martin, "The Great Clocks of Archibald Knox" in Style 1900, 13: 3 (August 2000), p. 28; and A.J. Tilbrook and Gordon House, The Designs of Archibald Knox for Liberty & Co., 1976, p. 112, fig. 94 for other illustrations of the model.