1. IOR/L/PS/20/B280/1 Reference (shelfmark): IOR/L/PS/20/B280/1 Title: List of routes in the Baluchistan Agency, with table of heights. Revised up to June 1924 Quetta: [Agent to Gov-Gen in Baluchistan], 1924 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1924 Extent: iii, 80pp
2. IOR/L/PS/20/B280/2 Reference (shelfmark): IOR/L/PS/20/B280/2 Title: Correction slip No 5, dated 1st January 1933, to the list of routes in the Baluchistan Agency revised up to June 1924 [Calcutta: Govt of India, 1933] Collection Area: India Office Records and Private Papers Languages: English Date Range: 1933 Extent: 7pp