There are no marks or stamps and I'm not finding much specific info on these. It's steel with a rough finish with cotton web straps and a front brim seam, 2lbs, 4oz. They are old but appear unused (just surplus). I know there are reproductions for sale but I don't think these are. There are no liners or accessories and I'm just wondering if anyone has any suggestions as to how old it is and is it an M1 or one of the variants. We have two I'd like to sell. Thanks~
