Handwritten and signed letters. The items relate to the diplomatic activies of Spain. Most of the material is in some kind of diplomatic code to assure that the letters would not be understood if they fell into the wrong hands. In the appendix (pp. 231-239) of his "Diplomacy and Dogmatism: Bernardino de Mendoza and the French Cahtolic League" De Lamar Jensen presents an explanation of how the code may be read.