South Celebes. Handstamped orange overprint Kaigun Minseibu no. 141o on the unissued complete set of 28 stamps type Kreisler, Numeral, Airmail, Van Konijnenburg and Dancer, not issued for postal use, but as a present for the Japanese Prince Kuni No Miya. Beautiful set. € 2,100. Ex Jacobs

South Celebes. 10 Cent Van Konijnenburg with black Makasser anchor overprint no. 100z-43bg, 3 copies on money order Bu.JF46 (rare) cancelled with Makassar Teikoku Seifu postmark, to transfer 30 roepiah from Makasser 20.5.10 to Soerabaja 9.6.05

North Celebes. Small red or orange disk overprint with black bar, applied at Menado, on 8 stamps (7 used, 15 cent Van Konijnenburg unused, 80 cent corner perf missing and not listed as 161o-53k, 4 cent Dancer not listed as 171r-69). Some signed Boekema

North Celebes. Large orange disk overprint with black bar on 5 and 20 cent Kreisler nos. 171o-21b and 27b, and 10, 50 and 80 cent and 1 gulden Van Konijnenburg nos. 171o-43bg, 51g, 53k and 54k, all used. Nos. 27b and 43bg beautifully cancelled Kawangkoan in violet (vNV.RR). Signed Boekema

North Celebes. Two 1 cent Kreisler with large orange disk, small black bar and anchor overprint no. 171o/150z-15a, 4 cent Kreisler with double (!) small orange disk, black brush stroke and black anchor overprint no. 161o/150z-20b and 4 cent Dancer with small orange disk, small black bar and black anchor overprint no. 161o/150z-69 on complete money order Bu.JF45 to transfer 7.50 roepiah from Kotamobagoe 19.1.19 (stamps cancelled Teikoku Seifu pmk) to Kawangkoan, changed into Menado 19.1.21, showing violet censor mark of Menado. Wonderful and colourful item in excellent quality, illustrated on the back of the Dai Nippon catalogue (3rd edition, 2017) which makes this item extra desirable! Ex Mattern, Jacobs

South and East Borneo. 10 Cent on 12½ cent stationery envelopetype Kreisler with lilac Bandjermasin anchor overprint Bu.207 (few minor faults) from Balikpapan 28.8.03 to Soerabaja, showing violet censor mark from Balikpapan Bu.JC3a. An extremely rare envelope of which only a few are known. Opinion SvL: the envelope with overprint is genuine in all aspects

West Borneo. 80 Cent Kreisler unwatermarked with violet large Pontianak anchor overprint no. 413v-36a, cancelled Pontianak 7.12.4.5. thus after the Japanese occupation. This stamp is not listed and probably unique. Cert. Van Dieten (2019). Ex Jacobs

Lesser Soenda Islands. Lombok. 2½ Cent Kreisler with red-lilac Lombok Sun overprint no. 511r-17b in pair, cancelled Ampenan 23.4.43.-9. One of the rarest stamps of the Japanese Occupation. Illustrated on the cover of the Van Dieten sale 565 (May, 1997). Desirable exhibition item of the highest calibre! See: J.R. van Nieuwkerk, p.108-110. Cert. Van Dieten (2019). € 6,500+. Ex Mattern, Jacobs

Lesser Soenda Islands. Lombok. 5 Cent Numeral with violet radiating sun overprint no. 511v-42, cancelled Ampenan. Signed Boekema. € 1150

Lesser Soenda Islands. Flores. 5 Sen Gun-Sei Kitte (= Military stamp) postcard on thick light green paper with oval red personal seal from captain Sawa, Bu.282a, unused. Extremely rare, only a few unused copies are recorded (even rarer than the few used cards). See: J.R. van Nieuwkerk, p.202-203. Exhibition item! Cert. Van Dieten (2019). Ex Jacobs

Lesser Soenda Islands. Bali. SERIRIT with written date 20.18.3 and without date (only the fixed dots), both vNV.034, RR. Two wonderful strikes of this very rare postmark on 2 single stamps of 20 cent definitive issue

Lesser Soenda Islands. Bali. SERIRIT without date (only the fixed dots), vNV.034, RR, Negara 9.4.46 (after Japanese occ.) and Singaradja 23.11.45 (after Japanese occ.). Nice strikes of these postmark on 3 single stamps of 20 cent definitive issue