awesome, thanks, for my knowledge, how could you tell?
It wears walnut so it is of the "RC", "C", "CS" lineage which is all denoting different periods of the same rifle. Had I not been able to tell it was walnut from your picture the "Marlin bullseye" on the bottom of your stock would've gave it away too. The economy models wear Birch and don't have pistol grip caps.