Welcome hixxy: Two sets of holes suggests that the helmet plate on the piece is not original and has been put on there to boost the value. I would advise you not to purchase such a helmet. Your fellow collectors will not want to buy it if you choose to resell. Essentially, you would be buying someone else's problem, so don't do it. Save your money and wait until something legitimate comes up for sale. In saying that, if you are looking seriously at something to buy, post comments and photos here on the forum and we will help you.