Thread: Icon Authentics
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Old 06-13-2018, 12:47 PM
Michael B Michael B is offline
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Join Date: Nov 2012
Location: Virginia
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Quote:
Originally Posted by steve B View Post
The primary components for the 5c 1847 are - Calcium carbonate, Lead sulfide, and lead sesquioxide (red lead)
http://chronicle.uspcs.org/pdf/Chronicle_252/21674.pdf

That may not come through, as the articles after a certain date are members only.

Printing inks would of course vary a lot from pen inks, as the properties need to be a lot different.
Do you think they had any concerns about lead poisoning when they licked that Ben Franklin stamp?

I was also at the 2006 World Stamp Expo in D.C. Drove down to the APS in Richmond last year. I used to collect quite a bit more. Now I usually buy Olympic related postal covers (1960 Italian set, 1968 US Trials set) to get signed by athletes.
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