1933, 0, 25 -1, 25 L. Holy year unperforated, horizontal pairs, 4 values complete, in perfect condition mint never hinged, unsigned, extremely rare, photo expertize Raybaudi for former foursome souvenir sheet set ". . . Genuine and with original gum. There they in very good conservation status are and in view of your great rarity were they not signed. ", by Michel unknown, Sassone catalogue value 32.000.- (Sassone-no. 15 a / 18 a)