Sumatra. West Coast. 25 Gulden Van Konijnenburg with violet Dai Ni Hon Yubin overprint in combination with black cross overprint no. 870v/330z-58, unused with sheet margin. The black spot on the right is not a perf missing but part of a black cross overprint. Cert. ´Van Dieten, 2019´. € 900

Sumatra. Atjeh. 7½ Cent letter sheet with violet Atjeh star overprint type 121 Bu.22b from Meulaboh 17.9.1 to Medan. Censor Bu.JC12a and pre-war brown censor label Bu.CS7 (on the front removed, on the back still stuck). The left inner half of the letter sheet has 4 pinholes, some sentences are blackened by the censor

Sumatra. West Coast. 2½ Cent Kreisler in pair with violet small Dai Ni Hon Yubin overprint in combination with violet large Dai Ni Hon Yubin overprint no. 883v/875v-17b on M.O. fragment cancelled Pajakombo 19.4.6.

Sumatra. Tapanoeli. Dai Ni Hon overprint in frame on Malayan stamps with Malayan overprint nos. M11c with 211z and 821v used (Atjeh), M11c with 211z and 834z unused (unlisted) and M13 with 211z and 821r on M.O. fragment

Sumatra. West Coast. 1 Gulden Kreisler with black cross overprint no. 332z-37b, c.t.o. (unused not recorded). Rare stamp! Signed Boekema. Cert. ´Van Dieten, 2019´. € 800

Sumatra. East Coast. 25 Gulden Van Konijnenburg (corner perf missing) with black Dai Ni Hon overprint without frame on the country name, similar to type 811, unused. Unlisted. Few other examples on other values known

Sumatra. West Coast. 20 Cent Kreisler with machine T-overprint in combination with black cross overprint no. 921z/330z-27b on piece, c.t.o. Medan 19.2.29

Sumatra. Riouw. 40 Cent Kreisler with machine T-overprint in combination with black large Dai Ni Hon Yubin overprint no. 921z/880z-32b on piece, cancelled Bagansiapiapi. Not listed

Sumatra. West Coast. 60 Cent Van Konijnenburg with machine T-overprint in combination with black cross overprint no. 924z/330z-52k, unused. Although the stamp is thin left (visible only on the back) it is a very rare stamp, only 1 used and 2 unused recorded (of which 1 in Dutch National Archives)

Sumatra. West Coast. 2 Sen Japanese postcard with 1½ cent in frame Bu.146 from Kajoetanam 18.7.22 to Medan. Censor Bu.14a from Padang

Sumatra. West Coast. 3½ Cent postcard with large Dai Ni Hon Yubin overprint Bu.175a from Batoesangkar 18.12.? to Medan. Censor Bu.JC14a from Boekittinggi

Sumatra. West Coast. Change of address card type Dancer with large Dai Ni Hon Yubin overprint, unused

Sumatra. Riouw. 50 Cent Kreisler with black Dai Ni Hon Yubin overprint in combination with black cross overprint of Bengkalis no. 881z/386z-34a, cancelled Bengkalis. Slightly stained, but a rare, unlisted stamp!

Sumatra. Riouw. 50 Cent Kreisler with reddish violet Dai Ni Hon Yubin overprint in combination with black cross overprint of Bengkalis no. 881r/386z-34a, cancelled Bengkalis 18.2.24. A rare stamp! Signed Boekema. € 650

Sumatra. Benkoelen. 10 Cent Van Konijnenburg with monogram overprint of postmaster Rosali in black, used locally in Liwa, no. 382z-43bk, unused. Only two unused copies known of which this is the 2nd one (the 1st being auctioned in sale 642). A very rare stamp! Cert. 'Van Dieten, 2019'. € 750

Sumatra. Benkoelen. 15 Cent Kreisler with black Star of David overprint no. 398z-26b, cancelled Liwa. € 300