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2012 HMS Shannon Obverse

Posted: Fri Nov 27, 2020 4:40 pm
by altakid
Has any one else run into this? It looks to me like the plating has rubbed off and it is starting to rust.
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Re: 2012 HMS Shannon Obverse

Posted: Sat Nov 28, 2020 8:50 am
by troubadour
a chemical can do this

PMD damage.

Re: 2012 HMS Shannon Obverse

Posted: Sat Nov 28, 2020 4:00 pm
by altakid
Thanks Troubadour
That's what I thought too, but can't figure out the rust. I think I will try a little alcohol on it.

Re: 2012 HMS Shannon Obverse

Posted: Sat Nov 28, 2020 5:17 pm
by coinguy
It can't be rust showing. Those cores are made of brass plated aluminum bronze, neither of which can rust.
It just must be the chemical reaction.