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what year was my marlin 336 serial number 26076513 made
The W prefix to your serial number indicates that your marlin 336 was made in 1963.
your marlin 336 RC(regular carbine) was made in 1953.
Your Marlin model 336 was made in the year 1981,with the serial number that you have provided.
Your serial number indicates that your Marlin model 336 rifle was made in the year 1970.
The 2 letter prefix of AB indicates that your Marlin model 336 was made in the year 1966.
The J prefix dates your marlin model 336 to the year 1952.
The letter E prefix to your serial number indicates that your Marlin model 336 was made in the year 1948.
your serial number indicates that your Marlin model 336 rifle was made in the year 1984.
The W prefix to your serial number dates your marlin model 336 to 1963.
Your serial number indicates that your Marlin model 336 was made in the year 1971.
1961. There is a serial number tutorial on wikipedia under "Marlin Model 336"