Engraved four times on each spur is the device of Louis II, duke of Bourbon (1337–1410): a strap and buckle with the motto Esperance (Hope).
Inscription: Engraved four times on each spur: 'esperance' (hope)
Chateau du Bouchat, near Saint-Pourçain-sur-Sioule, Allier, France.
Ex coll.: Comte de St. Genys, Saint Aubin-sur-Loire; Sir Guy Francis Laking, London; Clarence H. Mackay, Roslyn, L.I.
Louisville. J. B. Speed Art Museum. "A Loan Exhibition of Equestrian Equipment from the Metropolitan Museum of Art," May 4–July 3, 1955.
Dean, Bashford. Notes on Arms and Armor. New York: The Metropolitan Museum of Art, 1916.
Christie, Manson & Woods. Collection of Arms and Armour. London: Christie, Manson & Woods, 1920.
Laking, Guy Francis, Sir, Charles Alexander Cosson, and Francis Henry Cripps-Day. A Record of European Armour and Arms through Seven Centuries. Vol. 3. London: G. Bell and Sons, 1920.
Lenk, Torsten, Blanche Byrne, Jane Clark, Charles R. Beard, Leslie Southwick, Ian Eaves, John F. Hayward, Gordon T. Howard, and Walter J. Karcheski. The Journal of the Arms and Armour Society 2 (1956–1958). (14.25.1737 and 39.159.2 cited on p. 110).
Pyhrr, Stuart W. "S.J. Whawell and the Art Market." The Eleventh Park Lane Arms Fair (1994). p. 23.