Eldon: after John Blaze abandoned the effort at Parker Bros. c. 1880, to my knowledge no one in the U.S. has made crolle Damascus shotgun barrels until Steve Culver
www.culverart.com did so in 2012 . Check out
https://docs.google.com/document/d/1...DME9lB0JM/edit
He has been working with computer graphic design programs in the other direction; from the finished barrel back to the lopin, in order to show how the lopin was 'stacked' or 'piled'
See
http://www.picturetrail.com/sfx/album/view/24317402
This is a Parker 3 Iron Bernard II barrel with the end of the ribband segment where it was folded over as it was added to the barrel, and shows the pattern of the lopin