Good Afternoon - I have recently acquired a dog lock musket and I am trying to learn some more about it, specifically a maker and possible production date (range), certainly value would be of interest too. I have included photos of all marks, does certainly seem to be British with the London Proof House and View Marks. Feels like the design on the trigger guard would have been added later / post-manufacture. There does seem to be some embossing on the lock that is quite hard to make out, I might try a rubbing to see if anything becomes more obvious. Any knowledge the group can share or directions you can point me in to research would be appreciated!