If I'm not mistaken, the 30X0 rifles were made for OTASCO, the "Oklahoma Tire and Supply Company" (or something like that).
Each year for a few years they did a few thousand of these "Commemorative" rifles, featuring a different Western theme each year. (I think The Alamo was one of the others.)
They're essentially Glenfield model 30A rifles--meaning hardwood stocks.
As far as I know, they have no special collector value, but they're still perfectly serviceable Marlins.
