Liver of sulfur has been used to AT coins for over a century and the process described would likely not make a coin that looked normal to anyone familiar with surfaces.
<< <i>Liver of sulfur has been used to AT coins for over a century and the process described would likely not make a coin that looked normal to anyone familiar with surfaces. >>
In the three years I've been here, and with all the AT threads that have come and gone, including those where someone claims they know a coin is AT and how it was done (have to have heard that hundreds of times now), this is the first time the specifics of one particular process have been laid out. And I'm sure Tom is right that it wouldn't produce something you would want.
Quis custodiet ipsos custodes?
Apropos of the coin posse/aka caca: "The longer he spoke of his honor, the tighter I held to my purse."
I have an old book on metallurgy with a chapter on patination. I remember seeing a chart that lets you look up the silver fineness in one column and a color list row along the top. You look up the .900 Ag column and find the row marked red. At the intersection they told you what chemicals and process necessary to turn a .900 silver coin red. Interesting.
Comments
Bruce
I hope you post some photos of the project.
In honor of the memory of Cpl. Michael E. Thompson
<< <i>Liver of sulfur has been used to AT coins for over a century and the process described would likely not make a coin that looked normal to anyone familiar with surfaces. >>
Check out my current listings: https://ebay.com/sch/khunt/m.html?_ipg=200&_sop=12&_rdc=1
Apropos of the coin posse/aka caca: "The longer he spoke of his honor, the tighter I held to my purse."
seeing a chart that lets you look up the silver fineness in one column and
a color list row along the top. You look up the .900 Ag column and find
the row marked red. At the intersection they told you what chemicals and process
necessary to turn a .900 silver coin red. Interesting.
Steve