Interesting looking cent

I noticed this while checking my change,I've never seen a cent like it.I weighed it and it's 2.1 grams.What happen to it.

 

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My guess would be a rolled thin planchet.

 

That's what I'm thinking as well.

 

Meow can imagine that in Meows furry head. Makes sense.

 

Planchet error, struck through grease, broad-struck, weak die. It's a good error coin in my opinion.

 

@paddyman98 Help us out with this please.

 

A thinner than normal planchet that was filled with grease when this coin was struck. Add to that is a zinc planchet and what you see is what you get.

 

Copper plated zinc Planchet Cent.
It's a bit under weight but within tolerance.
Struck through grease but not a Broadstruck as someone mentioned. It's a Misaligned Die strike. Also not a weak die strike. You can see a bit of finning because of the normal pressure misaligned strike.