Flintlock Musket Advice Required

[Norman McCormick]

Hi Guys,
This flintlock is puzzling me. Apart from somebody thinking it would be a good idea to paint the stock orange the font of the word London on the lock seems to be more modern than the gun would suggest? Although I'm not clued up on that sort of thing. The barrel has proof marks on the top, have not looked underneath yet as lots of pins to extract, looks to be a crown over BP and a crown over BV along with the number 22. The inside of the lock has an S and a V and what looks to be CC as well. It is approx six feet long and fully stocked with the correct length of ramrod. The keepers for the ramrod are also pinned through the stock. It looks overall to be a reasonably well made thing but definitely utilitarian. Any help would be great.
Regards,
Norman.