Experts Needed: Absolutely Huuuge Copper Cent Planchet Strip

It is 95% copper, but I have a couple questions on this:

1. Would this strip be for U.S. cents or for a foreign Mint? I have never seen one this wide before. (@Fred Weinberg?)

2. Anyone know how to properly clean this?

Any help is appreciated. Thanks!

~Joe C.

 

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well, OOO steel wool?

 

You must be kidding

 

Looks like it was for US cents. It's mostly copper, and matches pre 1983 cents by width and thickness. How did you come across this interesting object?

About cleaning, whenever I come across a really oxidized 1920s wheat cent, I personally clean it with a Q-Tip and some toothpaste.

 

A guy who knows I collect errors asked me if I wanted it.

 

Do you use "sensitive teeth" kinds?

 

Yes, I did at one point. But, now I just use any toothpaste that I have.
Baking soda could also work.

 

It depends on the year. They must of changed the way Blanks were cut at some point. Just have to find out what era that webbing is from.

 

Just some real quick math....looks like it is 140 blanks

 

Close. 135. It is the largest uncut copper strip i have ever seen

 

Coinblazer- Just out of curiosity, what math are you taking in high school?
I was in Math Analysis junior year.

 

JCro57- Surprising that the webbing wasn't melted to create new coins.

 

Not only that, it is not like you could hide it in your pocket and walk it past security.

 

Freshman- Algebra 1
Sophmore- Geometry
Junior- Algebra 2
Senior- DC Statistics

 

Verdi-Care.

All the Verdi-Care.

 

@BadThad how many bottles do you think he’ll need?

I’ve seen some people have interesting success with oils, but it’s outside of my wheelhouse. @desertgem and @GDJMSP will likely have some solid insight.

 

What are the rules, if any, for surface preservation on planchet strips? With that much corrosion, I'd think this one would be a "details strip" regardless of what you do or don't do to it now...?

Edit: I'd still like to see the slab they'd put it in, even with a details grade.

 

I am not sure there is much that can be done.
Maybe a sealable tray with some acetone or xylene.
But it still would leave remnants of the corrosion.

 

With planchet strips, especially larger ones, they are all spot-toned in places, bent and dinged in places, corroded in spots, and/or "damaged" in some way. Those who collect them all expect they're going to have their own uique problems.

The same goes with unstruck blanks and planchets. They are going to have marks, dings, etc., as they are pretty much gone after striking.

 

A planchet strip can be slabbed? Well, for $30, they'll find a slab for it.