[angus-prune]

Methane from sewage was used in London gas lamps since the 1890s when the Webb Sewer gas lamp was invented. [https://nikmorton.webs.com/webbgaslamps.htm]

The most famous surviving example is next to The Savoy hotel on The Strand [https://www.historic-uk.com/HistoryMagazine/DestinationsUK/F...]