Thread: Icon Authentics
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Old 06-13-2018, 01:47 PM
Michael B Michael B is offline
Mh wߥ
Join Date: Nov 2012
Location: Virginia
Posts: 878

Originally Posted by steve B View Post
The primary components for the 5c 1847 are - Calcium carbonate, Lead sulfide, and lead sesquioxide (red lead)

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.
'Integrity is what you do when no one is looking'

"The man who can keep a secret may be wise, but he is not half as wise as the man with no secrets to keep
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