I have a mod 39 Marlin 1964 The serial number starts with a Y120xx Best I can tell it is a 1964. I'm confused about a couple of things. The 39 does not have an A behind it, and it has a gold-plated trigger. It is stamped JM
So, my question what I have. it has a Williams rear site added I assume. Any help would be appreciated.
Marlin 39 Help
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