Triumph H 1923 550cc.
The model H was introduced in 1915 as a logical development of the famous veteran Triumph.
It got a three speed Sturmey Archer gearbox, a transmission shock absorber on the main shaft and an aluminium closed primary chaincase. The secondary transmission is by belt.
The model H is equipped with a good clutch and therefore a practical machine to ride.
This particular example was restored some 25 years ago, by the standard of the time.