In my travels I found a unsigned KY/PA rifle. It's in good solid condition but plain as can be. Iron mounted 1/2 stock percussion & I'm guessing cherry or black walnut with a Golcher lock. In the last several months I have looked & looked first with a magnifying glass then a jewelers loop trying to find a name (other than the lock) with no luck. The only mark found is on the muzzle ( .L. ). The gun shows plenty of use, not abuse. The cal. is .30 or .32 & the rifling is almost perfect, I'm thinking refreshed. Has anyone come across such markings on the muzzle? Could it be the initial of the person that refreshed the rifling? I'm looking forward to your thought's, Thanx