I mentioned the Gillette building earlier:
Today I'm showing a detail of another of the buildings in the "iconic cluster" of art deco offices and factories. It is currently occupied by J C Decaux, the advetising group.
They are all clustered around Brentford Railway Station, close to the Grand Union Canal (itself a piece of industrial history) and were joined recently by the gigantic modern glass, concrete and steel HQ building of Glaxo Smith Kline. For a while, in the late 1960s & 70s, these relics 1930s "art deco" were decayed and unloved, but fortunately they are now preserved.