Sorry, Lowell, about vague reference. I meant earlier and later Lefever Arms guns. For instance, I wouldn't think anyone--manufacturer or restorer--would etch the barrels but blue a bottom or top rib of damascus composition. Later damascus Lefevers give the appearance of having ribs of blued steel so I assume they are blued steel. Obviously, I am not extending this intution to predict what some hack will or will not do to the barrels themselves.

jack