I can't recall if I've seen a Smith gun whereby Hunter marked a non-fluid steel barrel with a steel type identifier (Damascus, Twist, etc); but they typically did not mark composed steel barrels, only fluid steel barrels (Royal, Armor, London, Nitro, Krupp, Whitworth, etc). Thus the only way to ID your composed barrels would be to study the barrel pattern, which may not be possible if void of finish. If your bores are not pitted and have not been honed, I suspect they will be more than adequate for low pressure hand loads and factory "vintager" loads. And for whatever this comment is worth, I've had many conversations with gunsmith Buck Hamlin in which he has experimented with attempts to "blow up" Damascus barrels. These barrels were abused and badly pitted specimens that had been scrapped; but regardless of the load he used, not a single set exploded. Neither he nor I would ever recommend anyone ignore the possibility that a Damascus barrel can explode, as there are a number of examples of barrels that have; but the point here is that a QUALITY grade Damascus barrel (such as those used by Hunter Arms) in good condition is vastly stronger than we are lead to believe.