Surveys of the maritime postal history of: Chatham, Colchester, Gravesend, Grays, Harwich, Ipswich, Maldon, Margate, Queenborough, Rochester, Rochford, Sheerness, and Sittingbourne. With 25 half-tone plate illustrations and 51 maritime handstamps in actual size. A scarce work by the great expert in British maritime postal history.