I haven't double-checked it recently, but I believe that the factory records show the RAF taking two WD16Hs in August 1938, presumably assessment models and then a first delivery of 275 in March 1939. These were finished in the pre-war RAF blue-grey.

This one is complete with pre-war Local authority registration and NI-Fe battery.

The two machines built in 1938 were built according the 1938 spec.
It appears they later went for the standard 1937 spec.
They had black painted rolling chassis and headlamp rim and RAF blue sheet metal parts.
It did not have speedo. Norton applied an RAF transfer.

Cheers,

Rob

email (option): wd16h@telfort.nl