First, Harry James the Bootman offers no nonsense. One imagines workboots which would last and last, rather than fashion footwear.
This ghost sign in Queen's Road still has a clear slogan: 'For Health'. However, what should we be buying for our health? That part of the image has faded badly, but it was for a company called Daren who made bread: see this image of their advert for 'the best brown bread'.
The parts which have survived also suggest a whole history of previous billboards placed on top.
A Gillette advertisement has survived in a colourful form; layers of other painting also show through. Contrast it to the version on Commercial Road, Spitalfields below.