images of the original factory drawing, plus the Register page, now attached, showing the maker as Century Glass Works, Edmonton, London - the style of which would suggest a maker rather than wholesaler/retailer only.
In case the wording is unclear, the description for intended use reads ............. "a base for supporting a vase, bowl, bedside lamp or the like."
It may well be that Claire's 'snow globe' is threaded, and has a central hole which fits over the projection in the centre of the base, in which case they will possibly have started life together. The internal shape of the base requires something other than a fully circular design, and it's noticeable that the floor of the base carries some form of indent - for sealing perhaps? Opinions welcome.
