The letters AD equate to the year 1968.
The letters AD which is a prefix to your serial number indicates that your Marlin rifle was made in the year 1968.
The 2 letters AD ahead of the serial number indicate that your Marlin model 336RC(regular Carbine) was made in the year 1968.
The 2 letter prefix of AD to the serial number indicates that your Marlin model 336 RC(regular carbine) was made in the year 1968.
your glenfield was made in 1968.
1968.
1968 = AD
Well, from what I understand from the Wikipedia article on this rifle, your Marlin was manufactured in........(drum roll)........... 1977 (AD of course ;-P).
by Pete44ru on Tue Dec 20, 2005 7:47 pm I hope this helps all Marlin owners:--------------------------------------------------------------------------------Marlin Year of ManufactureMarlin year of manufacture maybe determined from the following list of letter/numeral prefixs to the serial number; this coding only applies to serialized rifles:1946-C1947-D1948-E1949-F1950-G1951-H1952-J1953-K1954-L1955-M1956-N1957-P1958-R1959-S1960 (August)-1961-U1961 (August)-1962-V1963-W1964-Y,-Z1965-AA1966-AB1967-AC1968-AD, -681969-691970-701971-711972-72Starting in 1973, the year of manufacture maybe determined by subtracting the first two digits of the serial number from 100:Example: SN 2512345 would have been made in 1975 [100 - 25 = 75].
YES! Marlin rifles made after World War II through 1968 can be dated by the letter prefix. Starts with 'C' for 1946 through 'W' for 1963 (skip 'I' and 'O'). No 'X.' 'Y' and 'Z' were 1964, then starts with 'AA' in 1965 through 'AD in 1968.
Check the serial number under the leaver. The initial letter will give you the year. C = 1946 through W = 1963 (one letter per year). Both Y and Z = 1964. AA, AB, AC, AD, and 68 = 1965 through 1968. 69, 70, 71, and 72 = the corresponding year (1969 - 1972). Starting in 1973, the year of manufacture can be determined by subtracting the first two digits of the serial number from 100: Example: SN 2512345 would have been made in 1975 [100 - 25 = 75].
Between 1960-85
The Colosseum was begun in 72 AD and dedicated in 80 AD.