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You Decide - Patina Or Corrosion?

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tdziemia's Avatar
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7939 Posts
 Posted 11/14/2020  12:20 pm Show Profile   Bookmark this topic Add tdziemia to your friends list Get a Link to this Message Number of Subscribers
Poll Question
What is your initial reaction to this coin? Don't overthink your choice, but please feel free to add comments!
You-Decide---Patina-Or-Corrosion?
You-Decide---Patina-Or-Corrosion?

Poll Choices
 Nice patina!
 Ugh! Corrosion
 Neither (comment?)

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 Posted 11/14/2020  1:48 pm  Show Profile   Bookmark this reply Add just carl to your friends list Get a Link to this Reply
Just a lot of tarnish.
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kanga's Avatar
United States
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 Posted 11/14/2020  4:02 pm  Show Profile   Bookmark this reply Add kanga to your friends list Get a Link to this Reply
IMO it's verdigris.
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Spence's Avatar
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 Posted 11/14/2020  5:36 pm  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply
@tdz, it isn't chalky is it?
"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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tdziemia's Avatar
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 Posted 11/14/2020  5:48 pm  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply
I don't think so, but I haven't poked at it.
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Canada
9864 Posts
 Posted 11/14/2020  7:00 pm  Show Profile   Bookmark this reply Add DBM to your friends list Get a Link to this Reply
It's verdigris which is both a patina and a form of corrosion.
"Dipping" is not considered cleaning...
-from PCGS website
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Coinfrog's Avatar
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 Posted 11/14/2020  7:02 pm  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
I think DBM says it very well.
Edited by Coinfrog
11/14/2020 7:04 pm
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oriole's Avatar
Canada
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 Posted 11/14/2020  7:59 pm  Show Profile   Bookmark this reply Add oriole to your friends list Get a Link to this Reply
I think that it has gone well past the patina point, but I would not have a problem with that in my collection.
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norantyki's Avatar
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 Posted 11/15/2020  05:23 am  Show Profile   Bookmark this reply Add norantyki to your friends list Get a Link to this Reply
Is attractive corrosion an option? ;)
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 Posted 11/15/2020  05:52 am  Show Profile   Bookmark this reply Add echidna to your friends list Get a Link to this Reply
Depends on whether the verd is active or not.
Sometimes its active and needs to be removed.
Sometimes its inactive and is OK.
I cant tell based on the pics.
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tdziemia's Avatar
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 Posted 11/15/2020  07:01 am  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply
I realize that from a "technical" viewpoint, patina and corrosion are more or less the same thing (i.e. the same kind of chemical reactions...including the one that forms verdigris). So, my intent with the poll was to ask the question if this coin's appearance would rule it out from your collection (something like @oriole's or @norantyki's responses). I think collectors of ancients see a lot of green stuff on bronze/copper coins, but collectors of modern coins might be put off.

To me, the way the devices stand above the verdigris makes this coin attractive enough to collect.
Edited by tdziemia
11/15/2020 07:15 am
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Spence's Avatar
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 Posted 11/15/2020  07:43 am  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply

Quote:
if this coin's appearance would rule it out from your collection


Definitely not. I love that ash (AE diphthong) in the second pic. Kinda looks like it was drawn by a high school student.
"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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tdziemia's Avatar
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 Posted 11/15/2020  07:59 am  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply

Quote:
I love that ash (AE diphthong) in the second pic.


Between POLONIAEs and FERRARIAEs I've got quite a few in my collection.
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twslisa's Avatar
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790 Posts
 Posted 11/15/2020  10:18 am  Show Profile   Bookmark this reply Add twslisa to your friends list Get a Link to this Reply
Whatever it is, I fall in with the "wouldn't mind having it in my collection" contingent. I like the look.

What IS this coin?

Also, echidna said sometimes it is active and needs to be removed. Even if it is active, how long would it take to really damage the value of this coin? It's taken quite a while for it to get to the point we see in this pictures. If it's going to take several more human lifetimes for it to damage the coin to the point it's no longer worthy of a collection, I'd let it munch away and enjoy it during MY lifetime.
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tdziemia's Avatar
United States
7939 Posts
 Posted 11/15/2020  12:23 pm  Show Profile   Bookmark this reply Add tdziemia to your friends list Get a Link to this Reply

Quote:
What IS this coin?


Papal States - Ferrara 1 quattrino. https://www.NGCcoin.com/price-guide...duid-1485971

It's close to a U.S. small cent in size. The obverse is the papal tiara and keys over the coat of arms of the Lambertini family. Reverse is mint name and date (larger denomination coppers give the denomination reverse)
Edited by tdziemia
11/15/2020 12:32 pm
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Canada
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 Posted 11/15/2020  2:16 pm  Show Profile   Bookmark this reply Add DBM to your friends list Get a Link to this Reply
For that particular coin I find it attractive, it highlights the design and brings to mind the patinated bronze statues and copper roofs of the era.
"Dipping" is not considered cleaning...
-from PCGS website
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