"N° 47PT (46x) Plate reconstruction (partial 4 positions missing n° 4, 7, 10 and 23) of sheet ""3,50fr. vermilion"" with typo overprint ""CONGO BELGE"", mostly cancelled, some with taxes, 4 stamps mint * of (*), plate reconstruction done by Gaston Gudenka (Image)

"N° 49PT (50x) Full plate reconstruction of the sheet ""10fr. green - Prince issue"" with typo overprint ""CONGO BELGE"", all cancelled, including 2x blocks of 4 and 1 block of 6, plate reconstruction done by Gaston Gudenkauf, with certificate, very scarc (Image)