Max â€” Congratulations.
It seems to me that you have two routes to finding the mouldmaking glassworks, the set of punches used for the reg. no., and the base stars, both of which can be as individual as fingerprints.
Also, the glass itself may help identify the manufacturing glassworks.
... and your continuing research in the archives may reveal something else registered to the same firm made by a known glassworks.
If you bring it to Cambridge, I will have a close look and see if I can help further. Have you tried taking a photograph of the number, or of an aluminium foil impression of it?
Christine â€” Jules Lang were factors
, or, in the old sense, manufacturers
, i.e. they would take a requirement and get it made, wherever they could get the best deal, not necessarily overseas. Conversely, take care never to assume without other supporting evidence that a company which described itself as a manufacturer
actually made anything. Burtles Tate would have quite legitimately described themselves as manufacturers of the Percival Vickers cut glass decanters shown in their trade catalogues, as they obtained their manufacture. All very confusing for the historian!