Don't recognise the mark as a Mappin and Webb retail mark and as it was made in Birmingham..possibly by Yapp and Woodward it may well be a Birmingham retailers mark. However...there are so many anomalies in the silver world that it could be Mappin and Webb!!!! Further research eh?
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Hi Mike,
Concur that the "MAW" needs further research, but can't see how Yapp & Woodward come into it, the Mappin & Webb maker's mark is clearly struck. I do not know if their Mn&Wb Birmingham mark is documented in any reference, but I've seen it on a lot of Birmingham silver dating to the first half of the 20th century.