Peter MARSHALL
Just across the Southwark Bridge Rd, where now the FT building stands were the City Lead Mills of Grey & Marten Ltd (my London Industrial Heritage site puts them on the wrong bridge) whose address was City Lead Works, Southwark Bridge, London, S.E1. To the right in the distance you can see Cannon St railway bridge and Adelaide House, on the north bank of the Thames next to London Bridge.
The company was established in 1863 and was apparently still in business in the 1960s and among other things sold leaded windows from an address in Little Park St as well as making lead containers and protective lead sheeting for medical X-ray and radioactive equipment.