This is a full listing of every House-brand Marlin I know of... Glenfield (There's a story behind the Glenfield/Marlin conglomeration...but that's a tale for another post...) Glenfield Model 10 = Marlin model 101 Glenfield Model 20 = Marlin model 80 Glenfield Model 25 = Marlin model 80/780...