Free: Contests & Raffles.
That serial number is a an inigma
That's why I was thinking the bolt might be the best indicator, but...Why no other markings on the barrel than CAL.30-30? Some said smokeless steel, etc. And no letters, no model name...
If I remember correct, Marlin was the first to label using 30-30. 30 WCF was what Winchester used well after WWII. My 46" Winchester is 30 WCF. These older guns are tough to research. Serial numbers jump all over the place.