I think in England they started an apprenticeship and at some point went to specialities like action work stock work engraving. But there were shops like kell ,jack summer that did engrave and train engravers
May I add the Henry Morris engraving shop in Birmingham to your list .
You are correct about apprentice ships , having been through this system myself . Although in my own time I was fortunate enough to avoid being to specialised and over my 48 working years was able to become experienced in actions , stocking and barrel work .
The gun we are talking about looks to be English work overall and has the look of a " gunsmiths gun" .By which I mean a gun that has been built or rebuilt with all the bells and whistles that you think a good gun should have ( The famous Scales gun being a good example )
The fact it is not signed is a mystery but IMO could have been made as show piece by a Gun Finisher , these were people who would work up barrelled actions for shops , smaller makers and do out work for larger companies , this could be a example of their work.
We may never know .
