Overhaul Manual for 750cc Three Cylinder Triumph Motorcycle Engine. Written by Thomas G. Gunn, Jr.,
The Triumph Corporation,
Baltimore, Maryland, February 3, 1969
This manual is 19 pages long and my research shows this was issued at the TRI-COR Mechanics Training Center.
Check out the typed pages and the HAND DRAWN ILLUSTRATIONS!
A GREAT HISTORICAL PIECE OF TRIUMPH CORPORATION IN THE USA