Does anyone have any ideas of the meaning of the "H" stamped on the blade spine? Also I have not seen any of the "blued blade" examples. Are these easy to spot as reproductions besides the blade being blued? Do they have genuine or fake stag grips or any other aspects that would easily identify them as reproductions? I just ordered one of these bayonets (a real one) and there seems to be some confusion between me and the seller on if the blade is plated or not.I have not received it yet. Thanks very much for the comments. Mike