A few days ago I was shooting my Baker Rifle at a friend's farm and he mentioned that he found a old musket barrel on the attic under some floor boards (house built in 1803). He brought it out. It has a 69 cal. bore, a hole drilled for a vent 46.5 inches from muzzle and a bayonet lug close to muzzle. It is rusted and pitted with no visible proof marks. My idea is it could have been from a French Charleville musket or an early US musket that were copies of French design. He said they also found papers where someone was applying for a pension from the war of 1812 in the attic. Any ideas on how to better identify it?