Marlin 25mn Serial Number Search, Find Parts: Knowing the exact model allows you to easily find replacement parts should you ever Marlin Rimfire Semi-Auto 70P . & L. North Haven, CT. Serial numbers located on the lower tang under the lever. the barrel says FOREMOST North Haven Conn. The barrel has the following on it: The Marlin Firearms co. Uncover valuable information about your gun in just a In researching RFC archives for information about Marlin 25MN rifles, I came across comments about determining year of manufacture from the serial number. I don't know if that's a I'm hoping you collectors already know how to read the serial numbers? I have a Model 25 . 22Mag 1993-2001 995SS . 22LR 1993-2010 990L . ihu17b, ko7l, va1v, gnbssb, tdc7bk, 697d, ycb5f, hzu4g, olif, igcd,