MARLIN Manufacturing DATE CODE

22 caliber bolt action and semi-autos were not serial numbered prior to 1969
(when the 1968 Gun Control Act was implemented).
Firearm serial numbers were date coded by a prefix within the s/n, as signified below.
For example a Marlin model 39A with a serial number of N12478 would have been made in 1955
while a 1894 in 44 magnum with a serial number of 25105098, would have equated to 1975

LEVER ACTIONS		ALL FIREARMS
1941 = B
1941-44 ***
1945 = C	1957 = R	1968 late = 68	1981 = 19	1993 = 07	2005 = 95
1946 = c **	1958 = S	1970 = 70	1982 = 18	1994 = 06	2006 = 94
1947 = D	1959 = T	1971 = 71	1983 = 17	1995 = 05	2007 = 93
1948 = E	1960 = U	1972 = 72	1984 = 16	1996 = 04	2008 = 92
1949 = F	1961 = V	1973 = 73 & 27	1985 = 15	1997 = 03	2009 = 91
1950 = G	1962 = W	1974 = 26	1986 = 14	1998 = 02	2010 = 90
1951 = H	1963 = Y	1975 = 25	1987 = 13	1999 = 01	2011 = 89/MR
1952 = J	1964 = Z	1976 = 24	1988 = 12	2000 = 00
1953 = K	1965 = AA	1977 = 23	1989 = 11	2001 = 99
1954 = L	1966 = AB	1978 = 22	1990 = 10	2002 = 98
1955 = M	1967 = AC	1979 = 21	1991 = 09	2003 = 97
1956 = N	1968 early= AD	1980 = 20	1992 = 08	2004 = 96

*** No commercial manufacture from sometime in 1941/’42 until 1945, due to WWII production & retooling

MR, production started in Remington plant with proof mark REP
However, Marlin like Winchester in the early years may have done a few special orders that do not fit. OR the gun was returned to the factory for repairs & ???