I found a 2002 D penny that looks aluminum and is oversized 1 1

[DWitt]

I found this oversized penny and I’m not sure what to think? I’m now at this and would really appreciate any input you can give me. 
 

thanks in advance for your help

[DWLange]

It's a normal coin that is corroded and was likely pounded into a larger diameter.

[Greenstang]

That is what is known as a Texas Coin. That is not aluminum, that is the zinc core that has had the copper plating removed. It is intentionally done and has no added value.

Edited November 20, 2021 by Greenstang