Hist Arch Folks:
Although its not a guide to identifying nails, if you are are in the economic and cultural context which is driving nail change. . . you might check out:
Loveday, Amos J., Jr., The Rise and Decline of the American Cut Nail Industry: A Study of the Interrelationships of Technology, Business Organization, and Management Techniques.
Jamie
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I am [log in to unmask] or [log in to unmask]
Jamie C. Brandon
University of Arkansas
Department of Anthropology &
NorthWest Arkansas Community College
Department of Social/Behavioral Sciences
http://www.projectpast.org/jcbrandon/