What is this Mint Error called?

ifthevamzarockin, posted: "Well I better take a guess then.
I think you are on to something and may be giving me a hint with "Woodie"
I see the woodgrain texture but I also see a little swirl to it.
I think it was struck through wood on a screw press.

You get a participation ribbon and actually, struck thru something is not a bad guess at all although a screw press was not involved to make it look this way. The answer appeared above. This is a case of EXTREME whizzing. Whizzing reaches this state, with doubling and ripples or waves, when it has gone way too far

 

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Whizzing is not a Mint Error.

 

Strong acid.

 

"You get a participation ribbon"

WoooHooo!

I will PM you my addy so you can send it to me.

So why was whizzing not one of your answers and why were you referring to it as an error rather than what caused this effect?

 

I see now that you were poking fun at newbie posts....You should have added "what's it worth"

 

A lot of people are missing the point!

 

I think you or the other joker can answer that for all the posters. Otherwise, If you have a pertinent numismatic question I will honesty TRY to answer it.

Here is your ribbon:

 

Acid-etched

 

I think it's from the Twilight Zone

 

Acid causing is the correct answer here

 

After all of the off the wall answers I'm not impressed. Thanks for the post, good luck.

 

Hey Rick, thanks for your comment. Would you care to make one of these for us because I disagree 100% with your opinion. Acid does not move metal into very built-up ridges like this. It tends to attack a surface much more evenly along areas of weakness. I and many old dinosaurs around here have partially dissolved Lincoln cents in acid long ago for our amusement.

BTW, the explanation of coins with this appearance came directly from the folks at the Mint Lab in the 1970's when we sought to find out if these could be genuine
Mint-made errors. So, with all due respect, I don't care what the error experts of today believe caused this effect.

 

From my HS Chem class. We are talking acid stronger than a vinegar, @Insider. Don’t let the wavy lines on yours throw you off. This is the smoking kind. You do not want to reuse this on your antipasto salad when you are done.

 

I made these myself, not found, so I know for sure.

 

So you made that & what type of acid was used?
Did the penny have any corrosion on it?
It doesn't look like there is quite as much metal movement.
Great example and thanks for posting it.

 

Great examples and I'll agree - examples of acid. One BIG problem guys, make the metal FLOW (displace it and dump it) from the wheel.

 

The example Insider posted and the examples I posted are whizzed with a wire wheel.

 

I know we were using H2SO4 and HCL, so it could have been either. That was back when the Beatles arrived here, so I'm a little foggy on the details. All I know is I kept it, still think it's kind of cool.

 

Yep. That’s my guess