| Date Note | Dates of colouring given by Chris Toland, 2022. |
| Description | Map of India, engraved by J & C Walker, published by Society for the Diffusion of Useful Knowledge (SDUK); C Knight & Co, 1846. Geological colouring with annotations and a key, [1846-1851]. Scale-1:2,300,000, 150cm x 120cm. Dissected on cloth. |
| Publication Note | Map is referred and reproduced in Toland, C, “George Bellas Greenough’s General Sketch of the Physical and Geological Features of British India (1854, 1855): Its production, distribution, variants and survivorship”, Earth Sciences History, 2022. |