Hello, Several years ago (I think 3) someone did a paper at the Southeast = Archeological Conference (SEAC) meetings on using a wire gauge to = collect pipe stem measurements. He stated that this removed much of the = error that is seen when this dating technique is used. Unfortunately, I = did not get a copy of the paper. Does anyone know who gave this paper = or have any references that might explain this technique. John Cornelison National Park Service