2000 One Cent - What Kind Of Error Is This

Show the entire coin, Obv. and Rev. We need closer and clearer pictures. It looks like glue. Put it in acetone and "gently" rub it with a Q-Tip. It with probably come off.

It is definitely not glue. Aside from the black gunk It is 100 percent metal Cud when minted. There is Cud at bottom of stem of maple leaf.

back pic

so any thoughts? It is one of a kind error as I researched the entire net for days and could not find anything about this error

but then should not the lumps be a different color. The lumps are the same color and are blended with the entire date. Also if you look closely the number 2 is deformed as well as the zeros and there is double imprinting?

That being said if it is suppose to look that then I guess the coin has no real value. right?

Not necessarily. The grey areas are where the copper plating has flaked off due to the expansion (especially in the low areas of the coin) exposing the corroded zinc, and the copper coloured areas are where they haven't. The rest of the deformation and "doubling" you see on the date is an effect of that expansion making a raised lump.

No numismatic value, but it's a learning experience.

Edit: Zinc oxide is normally white but seeing as you said half the coin was covered in black gunk, it's likely that the metal just got stained too.

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