[Thailand : Kabinburi-Sisophon?]
[Tokyo : Sanbō Honbu,
1941?]
A set of 10 maps covering the Siam State Railway (on the border of Thailand and Cambodia) from approx. Kabinburi to Sisophon.
Incomplete: 1 sheet only (sheet 8) at location 103° E. & 13° 35ʹ N.