Thank you all for the nice comments
Roger, thanks for the etch pics, looking close that looks to be what is on the knife but too far gone to be sure.
Lee, the punch style can definitely be a clue as to maker, I've been looking at pictures for another example, so far no luck. Some punches would have patent numbers on them which will identify the maker but this one does not. On another forum someone thought it is an early Ulster, pre Dwight Divine.