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Old 07-26-2018, 09:38 AM
waltr waltr is offline
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Join Date: May 2018
Location: SE Pennsylvania USA
Posts: 227

No, I just read all the the threads on cleaning and then additional research.
The Foil trick has been posted in all forums. It is a simple Galvanic reduction technique that converts Ag2S to Ag and H2S

For in depth details on cleaning artifacts I posted a link to a Texas A&M paper here:
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Old 08-10-2018, 09:56 AM
TrashMasterCCS's Avatar
TrashMasterCCS TrashMasterCCS is offline
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Join Date: Oct 2016
Location: Amador, Calaveras, Tuolumne,
Posts: 330

Originally Posted by SoOregonMd View post
Holy %^$% that came out awesome..

That waltr must be a closet alchemist

20 seconds.. really

I rubbed each side of the coin in the foil with spit for no longer than 10 seconds each. Worked like a charm.

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