Bronze Seal Matrix. Spain, 13th-14th Century A.D. Seal of Juan Diaz de Curnos.. Bronze Seal Matrix. Spain, 13th-14th Century A.D. Seal of Juan Diaz de Curnos (S IVAN DIA DE CVRNOS), Stars and Lis in cruciform around cross in looped square. 1 1/2" long with looped handle. Intact. Rare. Value Range $550-$750.