Thank you for your replies, chaps.
James,
You know, when I first got his gun I had a long look in Blackmore, and thought the mark looked more like John Hortons,...but not quite! (plus the date is wrong for Horton)
I don't know Why I had settled on Heylin, as the crown is very different, more like in Horton's mark.
Sorry to mislead. I see the commercial proofs in the photo you kindly provided, and thought that this could alter with barrel source. I took it that the proofs on mine were worn/badly stamped London proofs. (Rather than Tower )
I see no marks in Blackmore or his supplement, that look Exactly like this mark, so think you must be right about it being provincial.
Mark is also similar to John Hawkins 2, but the latter mark is more upright, and again, a bit early.
I think you have let me off the hook, James. Thank you! Now I do not need a lock that Looks like a Heylin, :-)
A question if I may;
Although the fore-end has been cut back and a rib fitted, barrel shortened and such, Can you tell me what date this gun would originally be made? I had thoughts myself that it may be a shade early for Joseph Heylin, but would appreciate your input.
The sideplate also had me wondering as I believe I have seen it on Heylin's work, but on Very few others, the only ones I know of being Wogdon, later, and W'm Bailes, plus One other , but can't think who at present.
Thank you again for your time and thoughts on this.
Richard.
Ca