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Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,
Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,
Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,
Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,
Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,
Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,
Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,

Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph,

Royal Comm on Water Supply

Prestwich, Joseph (1869). Geological Map of the Thames Basin. [London: Royal Commission on Water Supply] Appendix Y (1). Hand coloured lithograph, 61 x 102.5 cm, at 1:253,440. Dissected, mounted on linen and folded to 21.5 x 20.5 cm, between marbled soft card covers with manuscript label. Cover moderately worn and soiled. Map clean, colours bright, linen sound. In very good condition.

Solid geology only. Non-standard coloured legend using light colours to denote aquifers and dark colours for aquicludes. Introduces approximate contour lines at 100 foot intervals.