Wouldn't that be neat! That would bear more and closer pics. The broad arrow is unmistakable. The bend mark is present and the other marks(PFD) are UKI think. It's not in the book I have. (Lee Enfield Story) I just checked Skennerton
's book on the US Enfield. The bayonet is in fact the trials blade for the 276 cal pattern 1913. There were only a little over 1000 of these made. So, good catch Mick, it's rarer than rocking horse poo. Wonder what the value is???