Lead on icons

Using Laser Induced Breakdown Spectroscopy in order to identify the
components of varnish on Byzantine and Russian icons, has detected
the presence of lead. I wonder where I could find information about
the use of lead on icons since its presence seems to alter the
component analysis of the icon.

A layer has been also detected under the varnish with possible
colour and gum in its structure which has been used on many icons
and keeps the icons in a very good condition. I would appreciate any
ideas concerning these findings on icons structure.


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                  Conservation DistList Instance 15:30
                 Distributed: Tuesday, October 9, 2001
                       Message Id: cdl-15-30-012
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