This is the water tower at St Pancras, London. Rather more ornate than ours but the MR would have wanted a showy piece of architecture in that location - if only to counter the gas works!
click to enlarge
I am told the tower survives, having been taken down during the reconstruction of St Pancras station. It was rebuilt slightly to the north, by the Regents Canal. I must look for a 'now' picture.
And here are some:
two pictures of the relocated tower, above and below
and two amazing pictures of how they moved it. It was cut horizontally into three then craned into place. I thought it was a big enough crane job to plonk the 13.5 tonne roof room onto our tank but to move an entire water tower, almost intact, by crane must have been pushing lifting and other technology to the very limits:




