Marlin 336 family of rifles :

1948 -1968 a one or two letter code in serial #

1969 - 1972 the first two digits in the serial # = the year manufactured

1973 - ? the first 2 digits subtracted from 100 = year made

not sure about past the year 2000 mark

Last edited by M1894; 12/15/10.
Phil

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