WW2 small motor bike

Dear Friends:

Don found a image viewer and in one picture there is a D Day scene below and in the center is a small motor bike being carried to the beach. Through the years I have seen Harly Davidisons Military Bicycles but nothing like this small thing what is it and it would make a neat model.

Thanks,

Miles

Attached Images

Royal-Marine-Commandos-la-001.jpg (232.2 KB)