I'm trying to find the model number of my father's first gun. According to him, it was a Remington break action single shot 410 made around 1954-1955. He said it didn't have an external hammer, but it had a knob you pulled back to cock the gun in the place where the safety is on today's over and unders. I can't find info on this gun ANYWHERE. All I got was that it was possibly an import sold under the name of the Remington Arms Company. He had bought the gun at a Goodyear Tire company in Marinette, WI in 1955. Any help would surely be appreciated. Thanks