Old Motor Cycles
The 2 hp 1/2 Triumph of 1904, fitted with their own engine, an automatic inlet valve
pattern already outdated by the Minerva engine they rejected.
Discovering Old Motor Cycles
By T. E. Crowley
N° 160 in the Discovering series
First published 1973
Shire Publications Ltd.
12B Temple Square - Aylesbury
Bucks - UK