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1969 onwards
Note: The engine number is located on the left side of the engine immediately below the cylinder barrel flange. The number is stamped onto the raised pad.
The frame number is stamped on the left side of the frame, on the front engine mounting lug.


The first letter indicates the month of manufacture as follows:-

A - January
B - February
C - March
D - April
E - May
G - June
H - July
J - August
K - September
N - October
P - November
X - December

The second letter indicates the season year of manufacture as follows :-

C - 1969
D - 1970
E - 1971
G - 1972
H - 1973
J - 1974
K - 1975
N - 1976
P - 1977
X - 1978
A - 1979
B - 1980

The third section is a numerical block of five figures which commence with engine number 00100.
The fourth section indicates the model.

Example: NC00100T120R - N=Month C=Year, Number, T120R=Model.
 

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Hi Vernon. As the other guys have said, your numbers don't relate to anything in the records. Looking at your bike, from the features; disc / conical, 6 bolt rocker covers, right side seat catch, etc. makes it at least a 1974 build. Get back to us with the numbers.
Roy.
 

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Discussion Starter #8 (Edited)
Oops...

Ok--the serial number I was trying to decipher is another Triumph my dad has in his backyard. I guess my flashlight might have been a little dim, because it was actually a "PE" TR6R. Which I believe translates into a '71 650. I greatly appreciate all the help.
 
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