1804 Graeme Spence Harwich Chartby in Haven, Sea Charton Posted on 1804 Harwich Harbour by Graeme Spence (Believed to be Public Domain) See Graeme Spence Some points to note on the chart: Stone Bank and bars. Inner Channel and Gullet. Seamark and signal flags at Felixstowe and Bawdsey. Norther and Three Corner Point.