A nearly identical pair is illustrated in Peter, Nancy and Herbert Schiffer, The Brass Book: American, English, and European, Fifteenth century through 1850, (Exton, PA: Schiffer Pub., 1978), p. 39, fig. A. A closely related pair is in the collection of Winterthur Museum and is illustrated in Donald L. Fennimore, Iron at Winterthur, (Winterthur, DE: Henry Francis Du Pont Winterthur Museum, 2004), no. 89A, pp. 186-7.