Founded in 1816 by Eliphalet Remington. Company has distinction of being oldest firearms manufacturing firm in United States. Since 1856, it has been known by four different names: between 1856 and 1888, E. Remington & Sons; 1888-1910, Remington Arms Company; 1910-1925, Remington Arms U.M.C. Company (Union Metallic Cartridge Company); and 1925 to present, Remington Arms.
A serial number is printed on the receiver of each Remington rifle or shotgun, provided it's a newer model. Serial numbers were not a requirement until 1968, so older firearms may not have serial numbers. You can still use the two-letter code on the barrel of the rifle or shotgun to look up the firearm's age.

Remington Model 11 Serial Lookup

Two 12Gauge Model 11 shotguns. I was able to fix the barrels as April 1941 (CK) and Dec 1945 (XPP). Thanks to the website! The serial numbers are approx 440xxx and 720xxx. Also, he left his grandaughter a nice Remington Model 550-1 22caliber semiauto. Remington Model 11 Dates Serial Numbers On The Remington Model 11 Dates Serial Numbers On. Fortunately for collectors, it is not difficult to determine a rifles age, as beginning in 1921, Remington began imprinting serial numbers on the barrel of each rifle it produced.

FIREARMS INFORMATION

Remington never (*) (**) used serial numbers to identify the date of manufacture of it's firearms, they however stamped a date code (spelled out below) by the first letter meaning the month and the last letter the yearof manufacture.

BARREL DATE CODE - stamped exposed on LH top rear of barrel after 1920

the following will only be stamped where applicable

Remington Model 11 Serial Number Date Chart

#2 Part order barrel (not originally assembled to firearm)

#3 Service section received

#4 Return as received

Remington Model 11 Serial Number Date Chart 2016

#5 Employee sale

R.E.P. On the RH side of the barrel will be a Magnaflux, Remington proof & a test mark

If a gun is returned to the factory as a fire damaged, or blown up firearm, the factory will stamp it as a prefix to their date code with a #4 on the barrel and return it un-repaired. Then if the gun is ever subsequently returned to a warranty center or the factory by ANYONE, they will refuse to work on it as an unsafe firearm.

REMINGTON MANUFACTURING DATE CODE

stamped on LH top rear of barrel, 2 or 3 digit, (month first, year after) these will normally only be the last letters as seen below,

Remington 11 48 Serial Number Lookup

with the whole list shown here ONLY if it had been returned for repairs
The anchor shown here with the date code is just a symbol, as many different inspector marks will be seen

The above information was taken from Remington's own information sheet, so if your gun may not conform, then I am also at a loss in explaining.

The factory says all barrels are date code stamped, well I have found some that are not, or if they are, are so erratic stamping that trying to decipher them is impossible.

The photos below may help a bit. Both were taken off Remington 760s, with the one on the left, a 30-06 that I bought new October 10, 1954. This has been rebored to a 35 Whelen Improved. The one on the right again a 30-06, but with a shorter barrel that I made into a knock around quad rifle with pivot mounts.

Here the R represents November, & the ZZ would be 1953. The fourth digit being a 3 is inconsequential being an assembly number. There is no inspector mark on this side.

Here the first (LH) mark is the final inspector mark, the O represents July, the R would be 1968. And the F again being an assembly number.

JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
B	L	A	C	K	P	O	W	D	E	R	X

1920 = L	1930 = Y	1940 = J	1950 = WW
1921 = M	1931 = Z	1941 = K	1951 = XX
1922 = N	1932 = A	1942 = L	1952 = YY
1923 = P	1933 = B	1943 = MM	1953 = ZZ
1924 = R	1934 = C	1944 = NN	1954 = A (JAN. AA)
1925 = S	1935 = D	1945 = PP	1955 = B
1926 = T	1936 = E	1946 = RR	1956 = C
1927 = V	1937 = F	1947 = SS	1957 = D
1928 = W	1938 = G	1948 = TT	1958 = E
1929 = X	1939 = H	1949 = UU	1959 = F

1960 = G

1970 = T

1980 = A