Thomas Crapper's valveless waste preventer, No.814 cistern, c.1900 Thomas Crapper's valveless waste preventer 1900
"New Hotwell" gas heated cistern by John Wright and Co., circa 1930 "New Hotwell" gas heated cistern by John Wright and Co.
Slate cistern, split compartment, plug-valves on wire (after flush cistern), c.1875 Slate cistern 1875
"Niagara" cistern by Claughton, c.1890. Valveless syphon, wooden case, lead-lined "Niagara" cistern by Claughton 1890