Hi, New here so bear with me. I have a M1 Helmet No. on it is 9631 and the seem is in the back. I beleive the edging is stainless. It is non Magnetic. It has swivel bails. and I picked it up at a yard sale and someone
had striped the layers of paint off of it. Can anyone date or tell me anything about these M1 helmets
Is the "9631" stamped near the left side chin strap swivel? I have a few 1980s Canadian surplus M1s that are stamped with numbers starting with 96. Your M1 could be one of the last produced.... just saying maybe, Im by no means an expert.