- This Norton was spotted by Juris at the Morbidelli Museum
in Italy where it is labelled as a "TT Model
". And a nice machine it is. It has a Model 25 or Model 21 engine and a large oiltank but that doesn't make it a Works racer. The cylinder head - or at least the rocker pillars - is 1929, identified by the valve lifter. The frame is Model 18 or Model 19 as the distinctive Model 25 wrap-around magneto support lug is missing.