1961.
There is a serial number tutorial on wikipedia under "Marlin Model 336"
The H prefix to your serial number indicates that your marlin model 336A was made by marlin in 1951.
With the serial number provided,your Marlin .22cal rifle was made by Marlin in the year 1985.
Your Marlin firearm was made in the year 1991,with the serial number provided.
The W prefix to your serial number indicates that your marlin 336 was made in 1963.
Your marlin model 39A was made in the year 1980,with the serial number that you have supplied.
Your serial number indicates that your Marlin model 336W was made in the year 2009.
The K prefix to your serial number indicates that your marlin model 336RC(regular carbine) was made by marlin in 1953.
Your Marlin firearm was made in the year 1979,with the serial number that you have provided.
Your serial number indicates that your Marlin model 336 rifle was made in the year 1970.
With the letter J prefix to your serial number,this Indicates that your Marlin rifle was made in the year 1952.
Your serial number indicates that your Marlin model 60 was made in the year 1985.
Your serial number indicates that your Marlin model 39A was made in the year 1981.
Your serial number indictes that your Marlin rifle was made by them in the year 1985.
With the serial number that you have provided,your Marlin rifle was made in the year 1996.
Your serial number indicates that your Marlin rifle was made in the year 1971.
Your Marlin rifle was made in the year 1987,with the serial number provided.
It was made in 1980,with the serial number that you have provided.
What year was my marlin 30-30 made the serial number is 71 227984
Your serial number indicates that your Marlin model 39M was made in the year 1973.
Your serial number indicates that your Marlin model 25 was made in the year 1973.
Your serial number indicates that your Marlin golden 39A was made in the year 1982.
your marlin model 1897 was made by marlin in 1903.
Your marlin golden 39A mountie with the serial number you provided was made by marlin between late 1960-august of 1961.
With the serial number that you have supplied,your Marlin(Glenfield) rifle was made in the year 1980.
The W prefix to your serial number dates your marlin model 336 to 1963.