Norton
Norton Year Codes Code Year Code Year Code Year
Year codes were used or all the models between 1946 and 1960
A
B
C
D
E
1946
1947
1948
1949
1950
F
G
H
J
K
1951
1952
1953
1954
1955
L
M
N
P
R
1956
1957
1958
1959
1960
Norton Model Codes Code Model Code Model
In Addition; suffix D indicates de-luxe twin, suffix SS indicates sports special twin, suffix Q indicates quietening ramp cams ( some 1947 singles)
2
3
3T
4
6
7
8
9
10
10M
10M2
11
11M
11M2
12
16H
18
500T
ES2
19R
16H
18
500T
ES2
19R
BIG 4
16H or Big four plunger
19S
Internation 40
manx 40
manx 40 featherbed
international 30
manx 30
manx 30 featherbed
model 7
112
13
14
15
16
17
18
19
20
20M3
20M3S
50
ES
ES2
88
50
99
77 and Nomad
Nomad
Jubilee
All 650 twins
Navigator
Atlas
Commando (distributor)
Commando (camshaft points)
AMC 50
Electra
AMC ES2
Norton Serial Numbers Year No. Year No. Year No.
Some overlap of numbers occurred from one model year, or calendar year, to the next, some of these numbers are approximate and only relate to the year's end.
Also, Electra: July 1963 - 650, September 1964 - 6201 August 1965 - 7961
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1001
2131
7756
13792
20701
27100
35560
42700
48900
55350
60700
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
66600
71360
77400
80488
87038
94500
101060
105000
108000
111650
115870
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
119760
124300
130000
134700
141700
200001
212278
300000 (850)
307311
325000 (MkIII)
125001 (frame)