Posted by David Williamson on September 12, 2017, 6:07 pm, in reply to "Re: New Model"
To add to Brother Drew's response, starting in 1946 to 1950 serial numbers now had an "S" prefix and after an absence of 18 years, Marlin in 1968 started making them again with the prefix of "FWM". This only lasted until 1971. In both of these time frames only the Featherweights were made.