Seems to be about the same size as an MR variant....since my MR stencils seem to line right up Id venture to say....it might be a recast of one? Its solid...decent fiberglass work. Doesnt seem to have the brow wave like he used to incorporate...
Not much to analyze...it's a Fiberglass helmet. The lower right ear and left ear and Borden are molded into the helmet. Otherwise it seems really to be MR derived like I was saying. Look at the pics. I think the cheeks tell that story pretty well?