Sumatra. West Coast. Large Dai Ni Hon Yubin overprint in violet or black in combination with violet or black cross overprint, used in the West Coast and Riouw, unused or used, on 12 stamps type Kreisler. Signed Boekema

Sumatra. East Coast. 3½ Cent postcard with black Dai Ni Hon overprint type 813 Bu.160 from Medan 18.6.14 to Bandongan near Magelang (Java). Censor Bu.JC14c

Sumatra. East Coast. 3½ Cent postcard with reply-paid card attached not in offset but in rotogravure print (by Joh. Enschede & Sons, Haarlem), with black Dai Ni Hon overprint in a wavy frame type 832, unused. Signed Boekema. Very rare card!

Sumatra. Tapanoeli. Hinomaru overprint in fine type 211 and coarse type 221, in red, orange or purple on a nice selection of 34 mostly used stamps types Kreisler (amongst others no. 221p-22a unused), Van Konijnenburg (such as no. 221o-53k), Numeral and Dancer. Some signed Boekema. Ca. € 800

Sumatra. Tapanoeli. 10 Cent Van Konijnenburg with violet Hinomaru overprint no. 221v-43bg, used. € 150

Sumatra. Tapanoeli. 2½ Cent Kreisler and 7½ cent Dancer both with Hinomaru overprint nos. 221r-17b and 211p-71, on piece cancelled Taroetoeng 17.9.25 with censor Bu.JC13a. € 60

Sumatra. Tapanoeli. 10 Gulden Van Konijnenburg with red Hinomaru overprint no. 221p-57, unused. Signed Boekema. Rare stamp! Cert. ´Van Dieten, 2019´. € 900

Sumatra. Tapanoeli. Dai Ni Hon overprint type 811 in combination with Hinomaru overprint, unused nos. 811r/211r-15b, 16b, 811z/211p-19a (unlisted), 811r/211r-70 and used nos. 811z/211o-28b (unlisted, c.t.o.), 811z/221o-43II (unlisted), 811z/221p-48 (c.t.o.). Some signed Boekema

Sumatra. Tapanoeli. Dai Ni Hon overprint in frame on Japanese stamps nos. 821z-J4, 821v-J44, 821v-J10 (signed Boekema), 821r-J13 and 821v-J14, all used. € 308

Sumatra. Tapanoeli. Dai Ni Hon overprint in frame on Malayan stamps with Malayan overprint nos. M17/19, all used

Sumatra. West Coast. Large Dai Ni Hon Yubin overprint in violet or black in combination with violet or black cross overprint, used in the West Coast and Riouw, unused or used (50 cent used in the Republic), on 15 stamps (including 1 pair) type Van Konijnenburg. Signed Boekema

Sumatra. Tapanoeli. Handstamped T-overprint in combination with Hinomaru overprint on 3½ cent Kreisler no. 918z/221r-19a (signed Boekema), 25 cent Van Konijnenburg no. 912z/221p-47 and 2 gulden Van Konijnenburg no. 912z/221p-55g, all cancelled. € 410

Sumatra. Tapanoeli. Machine T-overprint in combination with Hinomaru overprint nos. 921z/211r-27b, 922z/211r-43bg, 922z/211r-47, 924z/221r-51k, 924z/211p-52g (transverse flag overprint, used), 924z/211p-52g (horizontal flag overprint), 924z/211o-53g and 924z/221p-54g (used). Some signed Boekema. Ca. € 200

Sumatra. Tapanoeli. Several types Dai Ni Hon overprints in different colours combined with several types of Hinomaru overprints in different colours on 28 different unused or used stamps (40 cent due no. 87b used in the Republic). Some signed Boekema

Sumatra. Tapanoeli. 3½ Cent postcard with black Dai Ni Hon overprint in frame and red Hinomaru overprint Bu.138 from Sipirok 18.1.30 to Medan. Censor Bu.JC12a

Sumatra. Tapanoeli. 7½ Cent letter sheet with Hinomaru overprint Bu.142 (2 pinholes repaired) from Kotanopan 18.7.27 to Medan. Censor Bu.JC14b