75 C. Postal stamp with sample overprint in type I in lieu of type II with left margin of sheet, officially blue pen cancellation, in perfect condition mint never hinged, unsigned, superb in every respect (choice copy), very rare, new expertise Brunel VP (2019) "the stamp has authentic overprint in of the type I in lieu of type II and mint never hinged original gumming. It were probably for testing purposes three sheet with the plate of the type I overprinted. . . . The condition is perfect. ", Michel 1.200.-