Sumatra. General Printings. 42½ Cent Kreisler with handstamped T-overprint no. 911z-33a on fragment of a 10 cent on 12½ cent postal stationery envelope with the same handstamped T-overprint Bu.187, cancelled Medan 19.11.13. The 42½ cent Kreisler lost its franking validity on 30 June 1941 and was never used during the Japanese occupation, but an unused copy was obviously found and handstamped with the T-overprint by accident or on request. However, the overprint is genuine and might very well be unique! See: Dai Nippon, Sprokkel, January 2022-1. Cert. ´Van Dieten, 2021´

Sumatra. General Printings. 5 Gulden Van Konijnenburg with handstamped T-overprint no. 912z-56, used. € 160

Sumatra. General Printings. 25 Gulden Van Konijnenburg with handstamped T-overprint no. 913z-58, cancelled. € 340

Sumatra. General Printings. 10 Cent (4 singles and 1 pair) and 1 Gulden Van Konijnenburg (pair) with machine T-overprint varieties like double, inverted, double + inverted, all cancelled

Sumatra. General Printings. 10 Cent on 12½ cent postal stationery envelope with handstamped T-overprint Bu.187 bearing unwatermarked 10 cent Kreisler with the same handstamped overprint no. 911z-24a, cancelled Medan 19.11.13. On the reverse a pencil note ´bekend alleen maar 23 stuks´ (only 23 copies known)

Sumatra. General Printings. 40 Cent Kreisler with machine T-overprint no. 922z-32b on Address card for domestic postal parcels Bu.JF10 for a parcel from Pakanbaroe 19.5.2 to Rengat 19.5.-5

Sumatra. General Printings. 40 Cent Van Konijnenburg with machine T-overprint no. 922z-50 on Address card for domestic postal parcels form no. Pp2 Bu.JF10 for a parcel of 600 grams from Sawahloento 19.4.26 to Baleiselasa 19.4.29, with form Pp1 added, meaning that the parcel could not be delivered and has to be returned to sender, on 19.5.4 from Baleiselasa to Padang 19.5.8

Sumatra. General Printings. 40 Cent Van Konijnenburg with machine T-overprint no. 922z-50 on Address card for domestic postal parcels Bu.JF10 for a parcel of 400 grams from Bangkinang 19.4.10 to Padang 19.4.14 in wonderful quality

Sumatra. General Printings. 50 Cent Van Konijnenburg with machine T overprint no. 924z-51k in two pairs on money order from Koetatjane 19.2.17, and 1 gulden Van Konijnenburg with machine T overprint no. 924z-54g from Pematangsiantar 19.7.10

Sumatra. General Printings. Four money orders with single frankings bearing Van Konijnenburg stamps with machine T overprint, 10 cent no. 922z-43bg from Pendopo 19.6.9, 40 cent no. 922z-50 from Pakanbaroe 19.7.4, 80 cent no. 924z-53g from Kotaradja 19.7.28 and 1 gulden no. 924z-54g from Padang 19.4.26

Malaya. Definitive issue, 2 and 4 cent on thick, gummed paper, reprinted in Singapore early 1945. Both values imperforated with sheet margin, with roulette perforation and with strongly shifted roulette perforation. See: Giel J. Bessels, The Postage Stamps and Postal Stationery printed by G. Kolff, Batavia (2011), p.362-63, 368. Rarely offered

Malaya. Definitive issue for Malaya, 2 and 4 cent in imperforated, gummed blocks of 8 with sheet margin

South Celebes. 5 Gulden Kreisler with black Makasser anchor overprint no. 114z-41b on piece, cancelled (seems really genuinely used). € 185

South Celebes. 35 and 40 Cent Van Konijnenburg with black Makasser anchor overprint nos. 111z-49 and 112z-50 on piece, genuinely used. € 110

South Celebes. 80 Cent Van Konijnenburg with black Makasser anchor overprint sideways no. 114z-53k, unused, and 1 gulden in pair of which only the left stamp has an overprint no. 114z-54k, unused

South Celebes. 2 Gulden Van Konijnenburg with violet Makasser anchor overprint no. 114v-55k, used. Scarce stamp! € 180