1852, 5 C. Blue, 2 superb in every respect items in colour shades, expertized Dr. Louis (Image 1) (Image)

1852 / 64, "King Willem III", 15 values in minor shade, very fine / superb (Image 1) (Image)

1872, "King Willem III", 38 values in minor shade, slightly mixed condition (Image 1) (Image)

1914 / 20, 17 ½ C. Ultramarine / blue, perforated L 11 ½ and 50 C, grey / violet, perforated K 12 ½, rest of hinge, 2 superb items, Michel 105.- (Image 1) (Image)

1913, 10 G. Red orange on yellow, superb piece of letter, Michel 850.- (Image 1) (Image)

1920, 2.50 G. On 10 G. Dark orange and red orange, 2 superb items, Michel 200.- (Image 1) (Image)

1921, "airmail", rest of hinge, very fine set (Image 1) (Image)

1923, 2.50 and 5 G. "25 years regency", rest of hinge, 2 superb items (Image 1) (Image)

1923, 2.50 and 5 G. "25 years regency", 2 superb items, Michel 450.- (Image 1) (Image)

1923, 1 G. On 17 ½ C. Ultramarine / brown, perforated K 12 ½, rest of hinge, superb (Image 1) (Image)

1924 / 5, "Queen Wilhelmina", unwatermarked, rest of hinges, very fine set (Image 1) (Image)

1926, 35 C. Brown olive, watermark 2, rest of hinge, superb (Image 1) (Image)

1926, 35 C. Brown olive, watermark 2, coil perforation, rest of hinge, superb (Image 1) (Image)

1928, "summer Olympic Games", mint never hinged, set very fine / superb, Michel 220.- (Image 1) (Image)

1929-30, "Queen Wilhelmina", "Rembrandt", "Voor het child", rest of hinge, 12 superb items (Image 1) (Image)

1930, "the four seasons", perforated K 12 ½, very fine set mint never hinged, Michel 65.- (Image 1) (Image)

1931 / 2, "Voor het child", 2 superb sets, Michel 70.- (Image 1) (Image)

1931, "Voor het child", perforated K 12 ½, very fine set mint never hinged, Michel 120.- (Image 1) (Image)

1933, "400. Birthday of Wilhelm I. ", very fine set mint never hinged, Michel 65.- (Image 1) (Image)

1933, "Voor het child", very fine set mint never hinged, Michel 100.- (Image 1) (Image)

1935, "care", very fine set mint never hinged, Michel 110.- (Image 1) (Image)

1935, 6 C. "aviation fund", mint never hinged, superb, Michel 75.- (Image 1) (Image)

1949, 5 G. Red-brown, gum minimal blotched otherwise very fine MNH, Michel 450.- (Image 1) (Image)

25.3.52, "Jan van Riebeeck flight" "AMSTERDAM cape city" and return, reverse side with colourful South Africa franking, superb (Image 1) (Image 2)

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1948, post paid military letter from Aruba / Netherlands Antilles, very fine (opening defects) (Image 1) (Image)