On Sun, 27 Jun 2004 13:18:58 -0500, Tom McDonald wrote:
Gary Coffman wrote:
The evidence brought out in this thread is that *one* copper artifact
shows radiographic evidence (characteristic porosity) for part of it
being heated above the melting point in atmosphere at some point.
That is in no way conclusive evidence of casting technology. The
piece may have been an attempt at casting, or it may simply have
been overheated while being worked.

Gary

Gary,

Are you referring to the sort of amorphous, three-cornered blob
listed in Conner's web site as 'R666', and in the Milwaukee
Public Museum (where it's curated) as '55786':

http://www.iwaynet.net/~wdc/copper.htm

If so, I have found additional information about that piece.

Tom McDonald

Yes, that's the one. What have you learned?

Gary