All this heated discussion is all very well but it does seem a little
pointless when nobody can tell me how to tell the two apart and provide any
context to their production (eg were they all identical or were there
variants). Surely without some basic understanding of the basic context of
production and use any heritage assessment is bound to be limited whether or
not Iceland is part of the USA!

respectfully yours

Dr Iain Stuart
Principal, Archaeology and Heritage Management
HLA-Envirosciences Pty. Ltd.
P.O. Box 726
Pymble, NSW 2073
Australia

Ph.  61 2 99884422
Fax  61 2 99884441