Posted: Thu Mar 24, 2011 9:00 pm

Here is some information that you can get from you serial number after 1921
Remington's manufactured after 1921 have a code located on the left side of the barrel near the frame that identifies the year and month of manufacture. The following letters correspond to the months of the year
Month Codes: [first letter]
B - L - A - C - K - P - O - W - D - E - R - X
1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12
Year:---------Code: [second and/or third letters]
1930----------Y
1931----------Z
1932----------A
1933----------B
1934----------C
1935----------D
1936----------E
1937----------F
1938----------G
1939----------H
1940---------- J
1941---------- K
1942---------- L
1943---------- MMZ
1944---------- NN
1945---------- PP
1946---------- RR
1947---------- SS
1948---------- TT
1949---------- UU
1950---------- WW
1951---------- XX
1952---------- YY
1953---------- ZZ
1954---------- A
1955---------- B
1956---------- C
1957---------- D
1958---------- E
1959---------- F
1960---------- G
1961---------- H
1962---------- J
1963---------- K
1964---------- L
1965---------- M
1966---------- N
1967---------- P
1968---------- R
1969---------- S
1970---------- T
1971---------- U
1972---------- W
1973---------- X
1974---------- Y
1975---------- Z
1976---------- I
1977---------- O
1978---------- Q
1979---------- V
1980---------- A
1981---------- B
1982---------- C
1983---------- D
1984---------- E
1985---------- F
1986---------- G
1987---------- H
1988---------- I
1989---------- J
1990---------- K
1991---------- L
1992---------- M
1993---------- N
1994---------- O
1995---------- P
1996---------- Q
1997---------- R
1998---------- S
1999---------- T
2000---------- U
2001---------- W
2002---------- X
Using barrel codes (such as those listed above) to date the manufacture are reliable on Remington rifles, as the company rarely changed barrels on a customer's rifle.
Using these barrel codes to date a shotgun is somewhat unreliable, as shotgun barrels are often interchanged at random. One needs to be sure that the barrel is original to the gun before trusting the Barrel Code listing, above.
(*) On 8/9/99, stopped stamping the barrels with the date code. They continued to mark the date code on the end flap of the shipping box. They resumed stamping the date code on the barrel on 10/1/01.
Also http://oldguns.net/sn_php/remdates.php

Posted: Mon Jan 07, 2013 9:27 am

Prior to 1969, the Model 1100 was available only in 12, 16 and 20 gauges. Beginning that year, Remington began making .410 and 28 gauge versions. Initially they were only available as Model 1100 Matched Pairs - a .410 shotgun and a 28 gauge shotgun in Field and Skeet versions. Both plain and vent rib barrels were available. The Field gun came with mahogany stock and fore-end, and Skeet guns came in American walnut. The .410 and 28 gauge guns were offered only as a matched pair with matching serial numbers gilded in gold, and protected in a hard carrying case. They retailed for $495.00 for the pair. A total of 5,067 Matched Pairs were sold in 1969 and 1970 with run-off sales of left-over stock in 1971 and '72. Later in the year, Remington began offering the Model 1100 in .410 with full choke for $199.95 and in 28 gauge with modified choke for the same price. Stocks and fore-ends were made of lightweight mahogany, and either gauge was available with plain or vent rib barrel.
What is the serial number and barrel date code of the gun. If you could get me those and a picture it would help?
If it is as you say and is one of the 1969-72 guns I would give $700.00 - $900.00 for it depending on condition and function. If you can find its 28 gauge mate and case.... then you would have something!!

We have done so much for so long with so little, we are now qualified to do anything with nothing!