South Eastern & Chatham Railway linen Diagram of Gradients books. One is titled Chatham section and covers Victoria to Dover Pier, Swanley Jnct to Ashford, Faversham to Ramsgate Harbour, Gravesend Sheerness Deal and Chatham dock the other is titled S.E Section and covers the rest of the company lines including Lydd & New Romney, Rye Harbour and the Elham valley line. Both are leather bound with full indexes and measure 7.5in x 5.25in. These remarkable survivors are both in excellent condition.