Sumatra. Definitive issue, imperforated ungummed colour proofs of the 3½ cent blue no. 04pcb and 10 cent red no. 07pcb. € 300

Sumatra. Definitive issue with hiragana overprint ´mihon´ (= Specimen) in red or violet nos. 03pdba, 03pdbb, 03pdbc, 04pdba, 04pdbb, 07pdba, 10pdba, 10pdbb, 11pdba and 11pdbb. € 900

Sumatra. Atjeh. Star overprint, both fine type no. 111 and coarse type no. 121, on 33 for the most part used stamps of different issues, all in violet except for one in red no. 111r-19a (mint). Few signed Boekema. € 550+

Sumatra. Atjeh. 4 Cent Dancer with brown-red Atjeh star overprint no. 111br-69, unused. Signed Boekema. € 300

Sumatra. Atjeh. Moehammadijah series with red Atjeh star overprint nos. 111r-61/65, unused. Signed Boekema. € 520

Sumatra. Atjeh. Framed Dai Ni Hon overprint in combination with Atjeh star overprint nos. 821v/111v-15b, 821z/111v-16b, 821z/111v-17b, 821v/111v-18a, 821z/111v-19a, 821v/111v-42, 821r/121v-69, 821z/111r-71, 821v/111v-68 + 821v/111v-70 on piece, all cancelled except for 71. Some signed Boekema. Ca. € 550

Sumatra. West Coast. Violet or black cross overprint for the West Coast and Riouw in combination with violet or black, small Dai Ni Hon Yubin overprint on 21 unused or used stamps, amongst others 5 gulden Van Konijnenburg no. 870v/330z-56. Most signed Boekema

Sumatra. East Coast. Dai Ni Hon overprint in violet type 811 on type Kreisler nos. 15a, 16b, 17b, 18b, 19a, 20b, 21bv (crease, not recorded) and 22b, all c.t.o. Ca. € 300

Sumatra. East Coast. Dai Ni Hon overprint in black or violet type 811 on 16 different unused or cancelled stamps (811v-21a thin spot). Some signed Boekema. Ca. € 440

Sumatra. East Coast. Dai Ni Hon overprint in black type 813 on nos. 15b, 16b, 17b, 18a, 20b, 42, 71, 82a and 84a, used or c.t.o. Some signed Boekema. € 440

Sumatra. East Coast. 10 Cent Kreisler with violet Dai Ni Hon overprint in straight frame no. 821v-23a, used. Scarce stamp! € 240

Sumatra. East Coast. Moehammadijah series with violet Dai Ni Hon overprint in straight frame nos. 821v-61/65, except for the 2 cent all other used (in the East Coast, and also used in Atjeh). The 10 cent is listed only with red overprint, the 15 cent is not listed at all

Sumatra. East Coast. Dai Ni Hon overprint in frame in black, violet, red or orange (no. 821o-71), types 821 and 822 on 40 mainly different unused or used stamps. Some signed Boekema. Ca. € 500

Sumatra. East Coast. Dai Ni Hon overprint in a wavy frame type 830 (several types 831/834), all in black except for one red (no. 832r-42) on 30 different, mainly unused stamps. 7½ cent no. 830v-81a not listed, 2½ cent no. 832z-67 with inverted overprint, 4 cent no. 830z-20a crease (? 12). Some signed Boekema. Ca. € 400

Sumatra. East Coast. 2 Cent Kreisler with purple Dai Ni Hon overprint in straight frame in combination with black Dai Ni Hon overprint in a wavy frame no. 833z/821p-16b, unused. Not listed

Sumatra. East Coast. 5 Cent Kreisler perforated 11¾ : 12¼ with black Dai Ni Hon overprint in a wavy frame no. 834z-21bv, cancelled. € 140