South and East Borneo. 40 Cent Kreisler with black Samarinda anchor overprint no. 231z-29b, used. Rare stamp! Ex Mattern. € 260

South and East Borneo. 60 Cent Van Konijnenburg with black Samarinda anchor overprint no. 231z-52g, used. Rare stamp! Ex Mattern. € 270

South and East Borneo. 80 Cent Van Konijnenburg with black Samarinda anchor overprint no. 231z-53k, used. Rare stamp! Ex Mattern. € 270

South and East Borneo. Black Samarinda anchor overprint on 7½ cent Kreisler, 5 cent Numeral and 7½ cent Dancer (crease) nos. 231z-22b, 42 and 71 on complete money order Bu.44JFb (R) from Samarinda -1.2.5 to Djokjakarta-/Gondolajoe 20.2.05. The 7½ cent Kreisler is a very rare stamp (€ 400). 5 Money orders are recorded (all ex Mattern) from the same sender to Djokjakarta on the same date, however, definitely not philatelic! Cert. 'Van Dieten, 2019'

South and East Borneo. 10 Cent postcard type Kreisler with lilac Bandjermasin anchor overprint Bu.204, unused

West Borneo. Large Pontianak anchor overprint in several types 410 in different colours on 31 unused and used stamps (Kreisler 28x, 2½ cent no. 410v-17a unused not recorded), Numeral (1x) and Dancer (2x). Some signed Boekema. Ca. € 650

West Borneo. Large Pontianak anchor overprint in several types 410 in different colours on 22 stamps type Van Konijnenburg (21 used). Some signed Boekema. Ca. € 400

West Borneo. 5 Gulden Kreisler with violet large Pontianak anchor overprint no. 413v-41b, unused. Signed Boekema. € 325

WEST BORNEO. 80 CENT KREISLER UNWATERMARKED WITH VIOLET LARGE PONTIANAK ANCHOR OVERPRINT NO. 413v-36a, CANCELLED PONTIANAK 7.12.4.5. THUS USED AFTER THE JAPANESE OCCUPATION. THIS STAMP IS NOT LISTED AND PROBABLY UNIQUE. CERT. ´VAN DIETEN, 2019´

West Borneo. 10 Gulden Van Konijnenburg with violet large Pontianak anchor overprint no. 411v-57, unused. Signed Boekema. € 360

West Borneo. 25 Gulden Van Konijnenburg with violet large Pontianak anchor overprint no. 411v-58, unused with sheet margin. Cert. ´Van Dieten, 2019´. € 675

West Borneo. Moehammadijah 2, 3½, 7½ and 15 cent with violet large Pontianak anchor overprint nos. 410v-61/63, 65, unused (10 cent unused not recorded). Signed Boekema. € 180

West Borneo. Large Pontianak anchor overprint in violet on 13 postage dues (1 gulden used, all others unused) nos. 411v-77a, 78a, 79a, 80a, 81a, 82a, 83b, 84a, 88b (used) and 413v-86a, 87a, 89a. Some signed Boekema. € 340

West Borneo. Small anchor overprint in several types 421 and 431/432 in different colours on 28 unused and used stamps (Kreisler 25x), Numeral (1x) Van Konijnenburg (1x) and Dancer (1x). Illustrated 421r-17b and 52g. Some signed Boekema. Ca. € 775

West Borneo. Small Pontianak anchor overprint in violet on postage dues nos. 421v-78a, 79a, 80a, 81a, 82a, 84a, 85a, 86a, 87a, 89a and 88b (slightly rust from a paper clip), all unused. Some signed Boekema. € 434

West Borneo. Moehammadijah with violet small Pontianak anchor overprint nos. 421v-61/65, unused (10 cent without gum). 3½ Cent signed Boekema. € 350