Bamboozler is correct. Keith did a sleeve job damascus to damascus. There was no attempt to match the patterning and the change in patterns was quite visible. I don't know if he has done others but if you have a project in mind Eightbore give Keith a call. As far as the lack of a sleeve mark my guess is Jaycee's got it. The smith neglected to tell the proof house and if the patterning was well matched, it just sailed on through as another damascus reproof.