[Riau Archipelago]
Japan.Rikugun.I Butai, Dai 1160.
[Tokyo?] : Oka Dai 1601 Butai,
[1945]
Relief shown by contours and spot heights.
Sheets individually titled at top margin
Captured Japanese maps with English translations in manuscript.
10. Great Karas Is. -- 12. Setoko Is. -- 13. Simpantiga -- 14. Great Abang Island -- 15. Samboe -- 16. M. Tjombol -- 17. Tjitlim Is. -- 18. Djora Isd. -- 19. Tandjoengbalai -- 20. Oeroeng
Covers the Riau Archipelago only.