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Roman Provincial Coin Of Diocletian From Egypt...with Bronze Disease..

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United States
138 Posts
 Posted 04/15/2016  09:40 am Show Profile   Bookmark this topic Add PhoenicianX to your friends list Get a Link to this Message Number of Subscribers
Here's another one from my friend's collection...Thinking of buying it but just wondering if its advisable to treat the BD and how! Thanks!!

Roman-Provincial-Coin-Of-Diocletian-From-Egypt...with-Bronze-Disease..

Roman-Provincial-Coin-Of-Diocletian-From-Egypt...with-Bronze-Disease..
Edited by PhoenicianX
04/15/2016 09:40 am
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Spence's Avatar
United States
34427 Posts
 Posted 04/15/2016  10:17 am  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply
look at (and then follow) the advice from Bad Thad in this prior CCF thread:

https://goccf.com/t/61519
"If you climb a good tree, you get a push."
-----Ghanaian proverb

"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
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echizento's Avatar
United States
23731 Posts
 Posted 04/15/2016  3:20 pm  Show Profile   Bookmark this reply Add echizento to your friends list Get a Link to this Reply
I enhanced your images a bit.



Roman-Provincial-Coin-Of-Diocletian-From-Egypt...with-Bronze-Disease..

Roman-Provincial-Coin-Of-Diocletian-From-Egypt...with-Bronze-Disease..
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Sap's Avatar
Australia
16849 Posts
 Posted 04/15/2016  7:40 pm  Show Profile   Bookmark this reply Add Sap to your friends list Get a Link to this Reply
These base-metal late Romano-Egyptian tetradrachms are very prone to corrosion. They aren't made of regular coinage bronze, there's usually high levels of lead, iron, sand or whatever else the mint happened to have lying around. They don't always respond favourably to treatment for bronze disease.

My advice would be to watch it and see if it actually gets worse, and only treat it if it does.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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