Sumatra. West Coast. 5 Gulden Van Konijnenburg with black cross overprint no. 332z-56, used. Signed Boekema. € 340

Sumatra. West Coast. 10 Gulden Van Konijnenburg with black cross overprint no. 332z-57, cancelled Padang 18.5.19. Signed Boekema. € 340

Sumatra. West Coast. 25 Gulden Van Konijnenburg with black cross overprint no. 332z-58, cancelled Padang. Signed Boekema. Cert. ´Van Dieten, 2019´. € 500

Sumatra. West Coast. Small Dai Ni Hon Yubin overprint in violet type 872 on 35 unused (nos. 17b and 21b with faults) and used stamps (postage dues series nos. 77a/88b all c.t.o. Padang). Some signed Boekema

Sumatra. West Coast. Large Dai Ni Hon Yubin overprint in black or violet, several types, including Dutch 12½ cent Van Konijnenburg no. 882z/882v-60 unused (not recorded, used € 80), mainly unused and some used, on 19 stamps. Some signed Boekema. Ca. € 300

Sumatra. West Coast. 12½ Cent Kreisler with black small Dai Ni Hon Yubin overprint in combination with black cross overprint no. 870z/330z-25a in used pair (left stamp with faults). Rare stamp! Signed Boekema. € 400 [+ € 400]

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