Sheet   64 Drift, Old Series 1". 1877. First drift edition. Rutland, Lincolnshire, Leicestershire, Northamptonshire: Stamford, Melton Mowbray, Peterborough and Fens. Topography date omitted, geology 1872, drift 1877, railways inserted 1890,  issue date 1907, coloured 1908. Hand-coloured engraving, 67.5  x 100.5cm, flat, clear plate marks, library stamps and stencilled sheet no. in upper left corner. Minor marginal tears. Slightly soiled, colours still bright. Legend expressed as stratigraphic column rather than conventional blocks of colour, an early instance. In good condition.