Mark — I'm (mostly) from your patch. My first proper job was in Cannock, just over 40 years ago, and I've lived in Hednesford, Cannock, Stafford and Lichfield. Last Saturday week I was at my great nephew's wedding in Short Heath, and I have family in Willenhall and New Invention.
Please be careful. You sound like an ebay seller looking for a good story to hot up your ebay listings, like many of us. Please treat carefully researched information with great respect. It is not there for anyone to extract the bits they like, discarding the rest.
Take Farnel, for instance. The Stewarts only found his name, and the address he used for that registration. That's all they found and all we know. We don't know that he was a metalbasher. He could have been an inventor, a designer, or just someone that the accountants sent in once a week to deal with any complicated paperwork. Equally we don't know what was at that address in Hill Street. And we don't know that Davidson made the glass — it's just a possibility.
Now, imagine that you hot up the story a little. The next ebayer tweaks your story, then the next, perhaps with a spelling error, and so on. Before the year is out we will have Farnell & Co of Mill Street, Birmingham, a giant factory specialising in unmarked metal ashtrays and other smoking requisites, barware and hotelware. Let's have a model village like Bournville around it, as anything is OK in ebaymakebelieveland. Ridiculous? There are plenty of examples already there on ebay. For instance, apparently all British unmarked handmade glass (according to most American and now some British ebay sellers) was made by either Stephens & Williams or Thomas Webb. Isn't it amazing that all the glass made by the other fifteen or twenty glassworks was mysteriously smashed.

Finally, thanks to your excellent photograph, Mark, I've been taking a close look at the numeric punch font used by the mouldmaker. Unfortunately there are no particular distinguishing characteristics that bring one mouldmaker immediately to mind, but I would start with Greener, Molineaux & Webb, and Burtles Tate mouldmakers at the top of my list of English possibilities, with the Davidson mouldmaker closely following in fourth place.
Bernard C.
