Louis Fave's maregraphe; open-sea recording tide gauge by Jules Richard, 1925-1930 Louis Fave's maregraphe; open-sea recording tide gauge by Jules Richard 1925-1930
Recording tide gauge by John English, 1850, from Lowestoft Harbour Recording tide gauge by John English, 1850 1850
Recording pressure tide gauge with box, by Foxboro Yoxall, 1950. (see part records) Recording pressure tide gauge with box 1950
Portable recording tide gauge by A. Lege & Co. Ltd., c. 1887. Portable recording tide gauge by A. Lege & Co. Ltd. 1887