I had one of those, back in the day, bought it when I was riding my Ariel 21 motorcycle, then later used it when I was racing hydroplanes, then sold it to a competitor to continue using it, because it was lighter than anything out there, probably got a picture of it somewhere, I remember one of my Dad with it on, trying to get my Ariel started to come looking for me, I had his car, and was a few minutes late getting home, now that was funny! True how something so trivial can trigger old memories, but yes, there was a McHal helmet in a lot of us old-timers lives! Bob
"Being old, isn't half as much fun, as getting there"! Ole Robert I!