Medium: Pen and ink on paper
This map of the Rainham Marshes in Kent is drawn on rectangular sheet lines, enclosed by a black border. Fields are coloured brown where cultivated, and green or blank if untilled. Stonework buildings or structures are drawn in red ink at the major settlement of Rainham, at the bottom right of the plan. Infilled or blocked areas of black or sepia ink indicate structures or buildings made from impermanent materials such as wood. Corrections have been made on this plan and the altitudes from sites of eminenece ('spot heights') are noted in red ink figures. Field boundaries are measured rather than estimated or sketched.