Thanks the breech assembly bears some close resemblance to the ZULU, had some good old pics of a ZULU on file. I had thought ZULU but then thought no becasue I recalled a spring on the ZULU, it's just missing on this one. The right side of the lock however is very different from the ZULU specimen. This one does not seem to have any provision for the breech to latch! Shows to go ya things weren't cookie cutter in those days. I thought maybe the iron on left side and cheekpiece was tell tale but I guess not necessarily. Still got a tough mainspring!