ITALY, 1988, 650 L SOCCER CHAMPIONSHIPS - YELLOW COLOR OMITTER, THE SO CALLED "MILAN BLUE" ERROR - MINT NEVER HINGED, #1743 var., pristine mint never hinged exapmple of this rare Soccer topical error, very fine, signed by and with 1990 Raybaudi cert., cat. Sassone 1836a @ €27,000.00