I have the same gun.
My grandfather gave me the exact same gun with the same lettering and everything on it. I recieved the gun when I was 12 and have been shoting it ever since. It uses the same ammo as a 32-20 Winchester WCF. Supposedly my grand father recieved the gun while serving in the Korean War.
P.S. Only recently has the gun given me any problems. It is sending sparks backward as I shoot it.