You can still see this building on the riverside walk beside the Thames, a little to the east of Lombard Wall, a Tudor flood defence, and on a part of the site of William Cory and Son Ltd, though the semicircular window has been filled in, the cross disappeared and the tangle of wires has become more intricate.
 
William Cory and Son Ltd was founded in 1896 when eight coal trade companies merged and it had thousand of railway waggons, as well as lighters and coasters to carry coal to trade and domestic customers in the London area. In the 1950s they went into supplying fuel oil as well and also ran a road haulage operation.
 
The company bought Thames and General Lighterage in 1979 and in the 1980s they gave up their coal and oil transport business in favour of waste transport and disposal. In 1990 they became Cory Environmental and since then there have been various mergers and sales of the business.
 
At right it states the tank is a catchpit, an empty chamber in a drainage system which is used to settle out silt and debris to prevent it blocking the pipes.