My grandfather, John Ferguson Gow, was a Harley Street dentist who spent all his spare time making cloisonné silverwork, and when he retired (I think), he got his Hallmark from the London Assay Office and started selling or giving items to churches and organisations. It looks like he only had his Hallmark from 1942 to 1948, but I know he was making things all his life.
Most of his work is very recognisable with the majority of pieces using the round dark and pale blue floral motif with a bit of green, but he did use other colours. If you look closely at the pieces, he must have had just a few mandrels (probably something out of the kitchen drawer) to make the wire shapes, as the same patterns of wire appears in most of the designs. And for things like the ashtrays, I think he probably bought ready formed ashtrays and riveted his designs onto the piece.
He made a lot of ashtrays (see above), brooches and pendants (see above) and bookmarks to sell in Harrods. And a lot of church silver. The Alter pieces at St Clement Danes were all made by him and presented to the church when it was rebuilt after the war in the fifties - absolutely perfect colour for the RAF. There are also massive alms dishes at St James Piccadilly, St Albans Abbey (in memory of my father Rev Hendrik Morilyon-Loysen), and St Bartholomew-the-Great the church at Barts Hospital (in memory of his brother Dr Alexander Gow). He also made a huge mace using a narwhal tusk for the Royal Dental Association.
I have just written most of this from memory, so there may be some errors – if you have any more info please contact me – thanks.
Also if you have any of his work, I would love to see a picture.