I've heard a lot of noise about the Long Branch No.5 jungle carbines. I had a chance to buy one many years ago for $500.! It was gone before I could get back to the guy, no surprise there, so I missed a great chance. The information I was given is that CanadianArsenals made 30 prototype No.5's. Of that number 27 were BELIEVED destroyed, one is purportedly in the Canadian War Museum, and 2 are in private hands. The one I saw had a '45 dated receiver and an "X" preface (or maybe it was "EX") and it did not have the standard "L" style serial number. If anyone has better or more certain information, I'd love to hear it. As to this thread about restoring a No.4, I just did one as well. It was a virtually unmolested '43 Long Branch from the condition of the metal, but it had the 3 holes drilled into the receiver (2 on the nox form, and one in the charger bridge). I managed to fill them not too badly and got my hands on "LB" marked wood and metal parts, so it' s a real beauty now.