A friend just gave me an old Marlin lever action. I ran the serial number through Marlin website and it didn't seem to recognize it. It is 20357. It has 38 56 on top of the octagon barrel. The pat. dates start at Feb.7 63 and end with what looks like Nov 6 HC Re-Issue Nov 6 1880 (or 1860). Any ideas? I would put a picture in but the wife has it out of town to take pictures of the new grandson.