What caused this strange texture on a coin........ Answered
ifthevamzarockin
Posts: 8,858 ✭✭✭✭✭
What caused the grainy surface on this coin?
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ifthevamzarockin
Posts: 8,858 ✭✭✭✭✭
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I would think harsh cleaning or possibly a science experiment?
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75 Positive BST transactions buying and selling with 45 members and counting!
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Cleaned with a wire brush?
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
Same coin, different lighting.
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What does the reverse and edge look like? It would help to see the rest of the coin....Cheers, RickO
Reverse & edge look normal.
Then it looks to me as if it lay obverse down in a slightly acidic material for a period of time. Cheers, RickO
Maybe heat?
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Same thing here?
Welcome @SusanD215
Yours looks like plating bubbles or occluded gas. It is fairly common on zinc cents, it is more of a planchet issue.
The quarter shown above may look kind of the same but is something different.
Different things happening to the Quarter and Cent. The cent is plated with a thin copper sheet that is bubbling under the metal. Very common. The Quarter, looks to be the subject of acid bathing (or some such thing). It is etched.
Start your own thread. What your doing is sometime called “hijacking” where you are trying to take over/replace/waylay someone else's thread/topic.
Welcome to the CU forums.
To answer your post: http://www.error-ref.com/blisteredplating/
In an attempt to show you the difference here is a cent with the same effect as the quarter. You should be able to see the difference in the texture.
This feature appears several times per year here on the forum.
Any more guesses?
Severely rusted hammer die?
My Saint Set
@ReadyFireAim
Very Nice!!!
Are you trying to bring class to my trash post ?
Thanks for looking & thanks to the folks that took time to respond.
Thanks to @ReadyFireAim and @SusanD215 for posting coins with a similar feature that could be easily confused.
This effect is caused by a wire wheel on a bench grinder.
I've been wondering about this coin for awhile.
I kinda like it but the price is too much for me.
https://www.nfccoins.com/products/10524
Here is a reverse shot which is not as "rusted?"
Can't figure it out...Someone else said rust when I asked about it in a previous thread.
My Saint Set
@ReadyFireAim Beautiful coin!
Without seeing the coin or the die in hand I would hesitate to say for sure if it was a rusted die or an improperly polished die.
I know most of the time when we think of die polish we look for lines/scratches.