I gave up the fight, donated it to a charity shop.

If you can remember it maybe we could get 7 forum members to play their part and upload them all. There is a way of putting them all together...

OK so following on the success of my last post......
I have had in my possession for the past few weeks(in my garage hiding it from the wife) a Linton horn. I had read a little that they were made by various manufacturers. Don't know if I have that right or not. I did a quick search here and it didn't turn up much except that it may have a barrel insert. Wasn't really expecting that but I looked and to my surprise it was. It has a small bore 14.75.
The instrument itself looks barely used. Only problem i had was the bottom of the mouthpiece (3/8" abouts) had broken off in the barrel. I pulled it out and abs cemented it back on the mp. I doubt I'm going to use it but hey whatever. Funny, pads hardly looked used, some don't even have hole impressions. Seating of the pads looks horrible if indication of the impressions on the pads them self loon unbalanced. Otherwise everything looks to be sound.
Question is who made it, if not Linton, and what sort of time frame am i looking at. Malerne, sml?
Serial reads 10w 12847

This might be rather tough. If we can't figure it out, I'll recommend the Tip Of My Tongue subreddit, they're pretty good at figuring things out without much to go off

Almost 3 years have passed, but this message thread remains full of good information so I continue .... Silversorcerer David's post just above helped me to set up trill keys to be "real" notes. I took it a step further. I enlarge the B trill tone hole, then glue a bump of material near the center of the pad. That way it keeps its full travel but acts like it opens less. It balances the factors nicely, which is not easy because that key effects 3 notes. Also, I can sand the bump to final-adjust it, without removing the key. I do this as routine on my Black • Hole C clarinets to dial in the B trill without de-tuning the side-key Bb.

I sell C clarinets often with a select vintage mouthpiece that matches with it especially well. The old STL name turned out to be a seller, not the maker, and is no longer relevant. To date, the quality remains high and a bit more consistent. But it still needs fine-tuning etc. to meet "concert standards". Then, I love the instrument and so does everyone I now who has one.