My early days of racing, I wore a Cromwell helmet, about all that was available in those days, see a lot of them in these old pictures, I walked under a low roof one night, and put a big dent in it, I later became the first distributor of Bell Helmets when they first moved East to the Vetter factory in Rantoul, IL.
The Cromwell was aluminum I do believe, the reason for the dent.
McHal became the fiberglass helmet ⛑ of the day, before Bell in 1955, I still have my McHal!