Loaded Flintlock - problem or not?

[CutlassCollector]

Hi Mark,

Here is a picture of the ELG mark it is located on the side of the barrel underneath the wood. There are no other marks except within the lock as shown but I guess these are inspector marks or indicate the maker of the lock.
From yours and Fernando's comments I think that dates the pistol sometime between 1810 and 1830. No crown and small letters. Is yours a similar mark?

I have read that these were sold to many European countries and it's interesting that yours also has a British proof as Fernando K confirms.
CC