Typographic overprints

Lot number 3772 Quality: **/*

N° 40/49 with typo overprint "CONGO BELGE", all ** except 49 * + "25c." T2 ** + 49B-Cu3 *, interesting accumulation, f (OBP €1,800)

Lot number 3773 Quality: **/*

N° 40/49 with typo overprint "CONGO BELGE" in block of 4, most MNH and 2 ex. n° 49 with watermark, vf (OBP €4,400)

Lot number 3774 Quality: *

N° 45-Cu "50c. olive" with typo overprint "CONGO BELGE" inverted, certificate Luc vander Marcken, f (OBP €880)

Lot number 3775 Quality: *

N° 49a "10fr. green" with typo overprint "CONGO BELGE", perforation 14 1/4, certificate Luc vander Marcken, rare, vf (OBP €500)