Damascene simply means surface etching or engraving to give a pleasing pattern. The term causes a lot of confusion when researching damascus tubes as some museum curators insist on using it. Watered iron, water patterned, water etched also get used at times interchangeably. There were guns, usually Turkish in origin, that had damascene barrels.

Also, there were several patents filed whose intention was to create a damascene barrel, like this one by Sachs.



Pete