The original of this popular and attractive ring brooch is at the Musee de Cluny, which dates it to the 14th century.
Product details: Bruna, Denis. Enseignes de Pèlerinages et Enseignes Profanes. Paris: Réunion des musées nationaux, 1996. No. 592.Dimensions (H x W): 1 1/2 x 1 1/2 inches 39 x 39 mm