Identification of pre 1970 Triumph Bonneville

[Burt]

Hello,

I am in Australia and am looking at buying a T120 Triumph Bonneville.  I am seeking a pre 1970 bike.
I don't know how to identify the year of manufacture for bikes manufactured prior to 1970.

I have a Triumph Alpha Numeric prefix numbering system which starts in 1969.  I was wondering if their
exists the same numbering system related to pre 1969 bikes so that I can identify the year of manufacture
from engine/frame numbers in advertising.

Thanks in anticipation.

Kev Edward

[L.A.B.]

This list should help you: http://www.tioc.org/serial_numbers.htm

[boardtrack]

L.A.B.' Thank you very much & thank you to 'Triumph International Owners Club'.  Quite a resource!