Is there any way to determine exactly what store based on the serial number?
I guess I am confused about the difference between a regular Marlin and a Marlin Glenfield that were both made in the same year.
Look up a Remington serial number by using Remington Serial Number Lookup.
The JM you mention is the proof mark applied to all Marlin rifles. No other identification can be found other than the Marlin insignia Doesn't seem to fit into the date codes above. There will be a letter before the serial number that will probably be between "M" and "S"" in the alphabet. What would be the date of manufacture for a "Marlin Model 336SC CAL.219 Zipper Micro Groove" On the side of the barrel just in front of the receiver is a "JM" enclosed within an ellipse.This date code was usually stamped on the left side of the barrel just in front of the receiver. Frankm there is a two letter code for month and year on 22's from 60-68 I do not know if it was on any other years, scroll down at the link below and you will find the list.The first letter of the date code is as follows: A = Jan. There is a much more complete information on dating a Marlin here at in the reference section. t=495G Wi; You apparently have a new Marlin Model 1895 that was manufactured in 1973.