Hi again Drew. After the little ones got their story and were tucked in for the night I took another look. No other marks on the barrels. Your links did lead me down some interesting roads of discovery though. The sheer numbers of different variants is astonishing. And the pics of disasters makes a guy nervous! At any rate, the gun itself is English so I was curious about the obvious replacement barrels and where the work might have been done or if that type of damascus was common to any particular makers/regions etc. Thanks for the info.
