1951 Vatican City, airmail stamps, 8th centenary of the “Decree” of the monk Graziano, intaglio print. Lire 300 lire lilac brown and Lire 500 light blue, monk Graziano teaching from his chair to a group of disciples. 2 new values, perfect, mint and never hinged. Catalogue Sassone no. A 20/21, Euro 450.00.