Sure wish I'd have asked more historical questions about it when Dad was still around!
He may not have known either. We used to have old rifles and such just about everywhere. I worked in a gas station when I was in high school, and the owner would sometimes accept old guns for work done to someone's car. That didn't mean he knew anything about them. they were just barter goods. I have had many guns given to me over the years for work done, for payment of debts, for fixing other guns, etc, or just to get them out of the house.