Hi guys been lurking for quite a while now and have used the forum as a refernce point quite a few times. Now I have a helmet with a white R on the front and rear. the helmet is painted black. what does the R stand for have looked in quite a few places but cant find anything. I know its going to be something obvious but I cant figure it. No markings on the helmet that i can see but the liner arm is marked 7 1/4 m&c 39. can post some photos later when i get home if it will help.