Suggest looking at the AAFS web site for contacts in the Questioned Documents section.
Dave Hause
From: proto957 [mailto:helio6@hotmail.com]
Sent: Friday, February 24, 2012 07:46 AM
To: forensic-science@yahoogroups.com <forensic-science@yahoogroups.com>
Subject: [forensic-science] Copper and Zinc in inks
I've found various references to copper and zinc in inks, and how the amounts of these metals in any samples, can help compare those samples. I have a couple of questions related to this:
1) When, historically, did copper and zinc first begin appearing in inks?
2) Is the presence of these metals a result of the manufacturing process, or in the use of the ink? I mean, is it from the ball in a pen rotating in it's socket, or the use of a brass inkwell... or is it in the ink itself to begin with?
3) Can anyone point me to a database of copper and zinc amounts in ink, correlated to time (years, centuries) or geography (who use inks which might have these metals)?
Thanks in advance for any help. Rich.
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