Bob,
I acknowledge defeat ... at least to your discussion of swaging vs.
erosion, although the erosion argument appear to be a persistent one.
Mark
--
Mark C. Branstner, RPA
Historic Archaeologist
Illinois Transportation
Archaeological Research Program
University of Illinois at Urbana-Champaign
209 Nuclear Physics Lab, MC-571
23 East Stadium Drive
Champaign, IL 61820
Phone: 217.244.0892
Fax: 217.244.7458
Cell: 517.927.4556
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"I hope there's pudding" - Luna Lovegood (HP5)
"If you only have a hammer, every problem looks like a nail"- Anonymous