Ok guys, I thought at first glance this was a .410 conversion - the bore has no rifling left whatsoever. Then I see "Cal. 7.7" on the butt socket? I know that 7.7mm is .303" inch, but...
Then the star symbol, and the strange serial number...
Help! :)
Lou
https://www.milsurps.com/images/impo...cture059-1.jpg
https://www.milsurps.com/images/impo...cture060-1.jpg