More of an additional plug for the additions to Brewers in London, than a mystery. However, there is always some element of mystery. Does anyone know who brewed the beer or the purpose of the Felixstowe Stores? And the trade mark? Similarities to another London bottler? What about Sambrown? I am sure someone brewed a beer by that name.
This label is the only one I know that mentions a stores at Felixstowe.