1. IOR/L/PS/11/9, P 958/1912 Reference (shelfmark): IOR/L/PS/11/9, P 958/1912 Title: P 958/1912 Siam: proposed extension of the Siamese Northern Railway to Chiengmai Collection Area: India Office Records and Private Papers Languages: English Date Range: 20 Jan 1912-26 Mar 1912 Extent: 1 file