My favorite type of firearms are Cap-lock Percussion Muzzleloaders, and I own two long guns and 2 handguns that load from the muzzle & use percussion caps for ignition.
First is a unique side-lock, single shot with a 20" long, 18 gauge smoothbore barrel that was dated to 1830-40, and probably made in North America, according to the antique gun dealer/collector who sold it to me.
The next antique gun is the first antique firearm that I purchased.
It is easily identified as being made by Bourne & Son in Birmingham, England, circa 1840-45, a genuine one of a kind, English Coach Gun!
12 gauge
SXS double barrels(22" length)
Side-Lock Action
Bourne & Son, Birmingham, England, circa-1840-45 : 12 gauge SXS double barrel English Coach Gun
Double barrel percussion Boot/muff Pistol, .46 caliber.
Antique percussion Muzzleloading Pistol, circa 1870
Appears to be custom made "one of a kind" from parts of a flobert rifle, and converted into a .50 caliber smoothbore in-line percussion muzzleloader pistol