Anyone have any info related to how to tell where a marlin was manufactured. I did find this:

On the left side of the barrel near the receiver will be a small jm stamp if it was made before the
Rimington take over. If you see REM with a border around it, it is made after the Remington take over. Remington eventually moved the serial number from the upper tang to the left side of the receiver. The take over happened in 2010 so serial numbers starting with the numbers 90XXXXXX need to examined closely as that was a transition year. Those with 89XXXXXX, or if any with 88XXXXXX will be all Remington and probably say Illion N.Y. on the barrel in stead of North Haven Cn.

From

http://www.gunvaluesboard.com/marlin...ture-1664.html

Marlin rifle with serial number on top stock tang, behind hammer.
There is some confusion about how Marlin Firearms used their serial numbers to ID the year of manufacture.
Some people are under the belief that all one has to do is “subtract the first two digits of the serial number from 2000 and that is the year of manufacture”. This is only partially true.
In order to find the year of manufacture one needs to know the **first two character’s** of the serial number as a minimum, either letters, numbers, or a letter number combination. In addition to the first two characters of the serial number, it’s also imperative in many cases to know the model number.
The serial number, depending on the model of rifle, will either be located on the upper or lower stock tang, bottom of the receiver, or side of the receiver.
Below are the manufacturing date codes, which are the first one or two characters of the serial number.
Please note this list is NOT INCLUSIVE of all Marlin firearms. Only those manufactured from 1941 through 2011 which have serial numbers on them and with the caveat mentioned elsewhere in this blog..
EXAMPLES:
If your rifle has the single letter “V” serial number prefix, that indicates a 1962 year of manufacture.
Letters “AC” = 1967
Numbers “24” = 1976.
(Notice there are no “I”, “O”, or “Q” serial number prefixes in use. Too confusing with the number 1, and 0 <zero>)

LETTER/NUMBER PREFIX	DATE OF MANUFACTURE
B	1941
–	No commercial manufacture from sometime in 1941/’42 until 1945, due to WWII production & retooling.
C	1945
c (not capital C)	1946
D	1947
E	1948
F	1949
G	1950
H	1951
J	1952
K	1953
L	1954
M	1955
N	1956
P	1957
R	1958
S	1959
T	1960
U	1961
V	1962
W	1963
Y	1964
Z	1964
AA	1965
AB	1966
AC	1967
AD	EARLY 1968
68	LATE 1968
69	1969
70	1970
71	1971
72	1972
27	1973
26	1974
25	1975
24	1976
23	1977
22	1978
21	1979
20	1980
19	1981
18	1982
17	1983
16	1984
15	1985
14	1986
13	1987
12	1988
11	1989
10	1990
09	1991
08	1992
07	1993
06	1994
05	1995
04	1996
03	1997
02	1998
01	1999
00	2000
99	2001
98	2002
97	2003
96	2004
95	2005
94	2006
93	2007
92	2008
91	2009
90	2010
89 / MR (See note Below)	2011

RANDOM NOTES -
Sometime in 2011 the serial number prefix became MR. This was done in conjunction with the sale of Marlin, and subsequent move to the Remington Arms plant in Ilion, NY. Speculation is that once receivers started being manufactured at the Ilion, NY, plant the prefix became MR.
***While potentially not relevant to this specific thread. As of late 2013, a Marlin .22 RF rifle (XT-22 Mag) had a serial number prefix of MM reported and verified. It is unknown as of December 2013 how Marlin (”Remlin”) will continue with their serial numbering convention.
It is important to note that some “budget” Marlin Rimfire rifles that were manufactured prior to 1968 did not have a serial number. Many of these had letter “codes” on them that will help ID date of manufacture. See here for these guns.
[COLOR=#8a0520]http://guncollectionsonline.com/marlinmodel60.htm
All model 336’s, and all other models of centerfire lever action rifles produced by Marlin, as well as lever action rimfire rifles (39, 39A, etc) made by them will have serial numbers.
Marlin made various Limited Edition / House Brand guns. Some of which do not line up with this serial number - date of manufacture convention. One such example is at least some of the OTASCO (Oklahoma Tire and Supply Co) rifles manufactured by Marlin. While these rifles are in essence model 336’s, rebranded under the OTASCO name. Their serial numbering convention was different from what is shown above. Not all Marlin House Brand rifles will vary from the above chart, but some will.