Sumatra. Riouw. 5 Gulden van Konijnenburg with black cross and violet Dai Ni Hon Yubin overprints no. 870z/370v-56 cancelled Bengkalis ..7.11. ? 280

Sumatra. Benkoelen. Malayan stamp M3, 2c orange with red overprint, with black Dai Ni Hon overprint type 841z for Benkoelen, fine unused mint. Not recorded

Sumatra. Djambi. 3½ Cent postcard with reply-paid card with violet overprint 'Nippon/MA' Bu.123 (only known unused)

Sumatra. Djambi. 20 Cent postage due with black overprint 'M A' no. 413z-84a on Telegraphic M.O. cancelled Badjoebang 25.1.4 and above straight-line Bajubang. This adhesive is very rare on postal item (RR)

Sumatra. Djambi. 20 Cent postage due with violet overprint 'Nippon/MA' no. 421v-84b on Telegraphic M.O. cancelled Badjoebang 26.1.4 and above straight-line Bajubang. This adhesive is rare on postal item (R)

Sumatra. Palembang. 7½ Cent dancer in pair with Arifin signet ring overprint in black no. 521z-71, cancelled Loeboek-/Linggau 18.8.-2. ? 250

Sumatra. Palembang. 1 Cent postage due, Kolff printing, with black signet ring overprint AR of postmaster Arifin no. 521z-77b, fine cancelled. ? 150

Sumatra. Palembang. 5 Cent postage due, Kolff printing, with black signet ring overprint AR of postmaster Arifin no. 521z-80b, fine cancelled. ? 140

Sumatra. Palembang. 20 Cent postage due, Kolff printing, with black signet ring overprint AR of postmaster Arifin no. 521z-84b, fine cancelled. ? 150

Sumatra. Palembang. 2 Cent Kreisler in pair with both violet and orange IPL signet ring overprint no. 522v/522o-16b, cancelled Palembang 31.3.3.13. According to Vrijdag in order to find the right ink various colours were tried, and in this case the violet overprint is hard to see on the violet background, and the stamps were thus also overprinted in orange. Only two pairs are recorded, this one and a pair in the Museum for Communications. ? 300

Sumatra. Palembang. 20 Cent Kreisler with MSL monogram overprint in green no. 531g-27b from Batoeradja's postmaster Mas Slamet, fine unused. A rare stamp! ? 500

Sumatra. Palembang. 10 Cent Moehammadijah no. 547z-64 in pair showing the full straight-line overprint TANDJONGRADJA, used to validate stamps, on M.O. fragment cancelled Kajoeagoeng 20.6.2.12. Very rare and only two pairs recorded. ? 600++

Sumatra. Palembang. 3½ Cent postcard with 711r = Gunseibu In overprint in red, large black 2 and unusual 3½, heavily censored on both sides (that blackened text could be written in Dutch language) from Palembang 18.9.5 (type 010) to Djakarta, censor Vr.201. Same as Bu.42?

Sumatra. Palembang. 3½ Cent postcard with large IPL overprint without frame in black Bu.56 from Palembang 9.3.3. (type 010) to Lahat, censor Vr.102b

Sumatra. Palembang. 3½ Cent postcard with medium IPL overprint without frame in black Bu.56 from Palembang 15.5.3. (type 010) to Malang, censors Bu.JC14c (Palembang) and JC36 (Java)

Sumatra. Palembang. 3½ Cent postcard with small IPL overprint without frame in black Bu.56 from Palembang 22.4.3. (type 010) to Bandoeng, censor Vr.102b in red