Thanks for the replies so far.

To me examining the gun up close looking at the "tooling" marks this seem like sand cast metal that was then hand tooled...

The workmanship is good but does not look precise like the machining on an American or English gun.

Geo - what do you mean by the "total lack of Barrel flats?"

I could not get the camera to work well enough to show the Barrel Damascus while standing around in the guys kitchen last night.

There is a rib runs down the center although its not very deep - the site at the end of the Barrel looks to be an ivory circle with a round brass bead pinning it through...Again Bad light could not capture the detail...