11. IOR/V/25/611/11 Reference (shelfmark): IOR/V/25/611/11 Title: List of coal mines worked under the Indian Mines Act in British India, 1942/43 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1942-1943 Extent: 1 volume
12. IOR/V/25/611/12 Reference (shelfmark): IOR/V/25/611/12 Title: List of coal mines worked under the Indian Mines Act in British India, 1944/45 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1944-1945 Extent: 1 volume
13. IOR/V/25/611/13 Reference (shelfmark): IOR/V/25/611/13 Title: List of coal mines worked under the Indian Mines Act in British India, 1948 Collection Area: India Office Records and Private Papers Languages: English Date Range: 1948 Extent: 1 volume