The name of the baker has faded too much to be able to identify it and a quick search online did not provide any satisfying result. Once I have more time I may go and have a look at the local library.
The presence of the tilde on the 'O' of Hovis indicates this sign was certainly painted between the 1920s and 1950s. Such a spelling appears on several Hovis ghost signs found in Tonbridge, Tooting (in the original version of the sign), Islington, Guildford, Clapham, and Battersea, published earlier on this blog.
Location: Dulwich Village / Pictures taken in March 2013