Harrington & Richardson
Serialization
1940 to 1982
Year

Serial Number
Prefix
Year
Serial Number
Prefix
Year
Serial Number
Prefix
Year
Serial Number
Prefix
1940
A
1953
N
1966
AC
1979
AT
1941
B
1954
P
1967
AD
1980
AU
1942
C
1955
R
1968
AE
1981
AX
1943
D
1956
S
1969
AF
1982
AY
1944
E
1957
T
1970
AG
--
--
1945
F
1958
U
1971
AH*
--
--
1946
G
1959
V
1972
AJ
--
--
1947
H
1960
W
1973
AL
--
--
1948
I
1961
X
1974
AM
--
--
1949
J
1962
Y
1975
AN
--
--
1950
K
1963
Z
1976
AP
--
--
1951
L
1964
AA
1977
AR **
--
--
1952
M
1965
AB
1978
AS
--
--

.*Snap on fore cap.
** Striker Mechanical Instruction

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