another twist-core

[DaveS]

Jose: I have used a high magnification lens and examined the valleys made
by the etch. I see no evidence of nickel pamor at the bottom of these
valleys. I can't see how these two techniques are the same if nickel
threads can't be seen at the bottom of these valleys. Somehow i think
we are talking about two different ways that this can be done.
At this point i think i need a bladesmith with experience in making
damascus to maybe explain this.........Dave.