I know almost nothing about Marlin's models, so I can't place it. I found the safety sort of odd. It's just a hammer block, not really a safety. The hammer still falls if you pull the trigger. Just can't reach the firing pin.
I don't intend to do anything with it. Not research it's history, re-blue it, put on a scope, na-da. It goes in the back of the safe with a couple hundred rounds of ammo and can snuggle up to the Mosin for company. It'll come out probably either at the EOTWAWKI or after my funeral when the kids are trying to find out where all their inheritance went.