I have been searching for an answer as to the serial number on a 94 I got from my father after his death. The serial number is L291780. I had sent the number to the Winchester Museum in Cody and they couldn't come up with an answer. I know that the gun was bought for my dad in the early fifties, used. I have no other information other than it is a pre-64 with the screw exposed and it does have a round barrel. Any throughts?