To Fit : Villiers gearbox. Part Number : Villiers 23 teeth. Here we have a high gear.
Villiers Engine Gearbox High Gear 4th Gear Francis Barnett James & Others 23T
VILLIERS Engine Motorcycle Maintenance Handbook 1969 Ref F9-G.4248 Singles Twins
VILLIERS Engine Motorcycle Maintenance Handbook Pitman 1964 #F4
The Book of the Villiers Engine....Pitman's 1948 edition.
THE VILLIERS ENGINE BOOK BY PEARSON'S inc. 9D, 2F, 1F, 10D, 6E etc. 1951
Gearbox High Gear Oil Seal Triumph T110 T120 Pre Unit 1950 to 1962 T946