Just to add a footnote...........
I still have the helmet and the yellow backed gloves.
Full face helmets were crude back then. The visors were held on with press stud poppers - pushing the visors and and making it stay up meant wedging the back edge against the helmet top which used to wear the top of the helmet. Note mine has a white strip of draft excluder - a common method to make it stay up without marking the helmet.
One particular helmet had a visor that would go right over the top so it rested behind your head.
