@en|Scanning of a December 1952 order for pens of the [[Corona di Mario Diaz|Mario Diaz Corona]]'s brand. By the forum user [http://forum.fountainpen.it/memberlist.php?mode=viewprofile&u=57 tridenteus], published under his permission. | @en|Scanning of a December 1952 order for pens of the [[Corona di Mario Diaz|Mario Diaz Corona]]'s brand. By the forum user [http://forum.fountainpen.it/memberlist.php?mode=viewprofile&u=57 tridenteus], published under his permission. |