I got this strange penny in a roll today

It is extremely shiny like a proof almost but it has a D mint mark. Is there anything special about it, should I hold onto it? Thanks,
Noobismatist

Front side:


Back side:

 

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Tampered

Looks like a science project.

Don't breath a lot around it. Could be mercury.

 

Thank you for your help

 

looks plated, probably through electrolysis, just like we used to do in science class.

 

Mercury would be my guess, but I would suspect that they could do the same thing with zinc.

 

Coin appears to have been elctroplated, but well worth keeping. Thanks for sharing

 

it looks plated.there were a bunch of cents plated and put into special displays.

 

I concur with others. Looks plated to me too.

I also seem to also recall doing something like this in science class, as bqcoins said.

 

...i think you should get it slabbed. :kewl: