Graeme,
Thanks for your input and yes the bottom photo shows the same pulleys turned over - the top photo shows the inside face and the bottom photo shows the outside face.
In both photos, the one on the left is a nickel plated pulley off my TS (clutchless and no kickstart).
The right hand pulley is also a Douglas pulley but I'm unsure of its origins.
Did Douglas use the same pulley on both clutch and clutchless gearboxes for the TS?
Is the veteran pulley you are interested in, the same as either of those in the photos?
Cheers,
Stephen