Illustration of this scarce type in Hawkins, E. 1842. AN ACCOUNT OF COINS AND TREASURE FOUND IN CUERDALE
The Numismatic Chronicle and Journal of the Numismatic Society, APRIL, 1842–JANUARY, 1843, Vol. 5 (APRIL, 1842–JANUARY, 1843), pp. 1-48. Engraving by F.W. Fairholt.