Sliver 1978 Penny 0

[John bennett74]

[Just Bob]

Welcome to The Forum.

The most likely explanation for the appearance of your coin is that it was plated sometime after leaving the mint. Lincoln cents seem to be the most popular subject of science experiments or bored employees of machine / plating shops. There are, quite literally, thousands of these running around "in the wild."

[Greenstang]

Welcome to the Forum

Agree with everything Just Bob says.

These turn up almost daily on this and other Coin Forums, mostly high school experiments.

[Oldhoopster]

As others have said, your coin was plated after if left the mint and is not an error

Here are the instructions for one type of plating you can do yourself

https://www.thoughtco.com/gold-and-silver-pennies-605971

[John bennett74]

Thank you very much appreciated I kinda figured it was to good be true I never found anything good but all good I just put it back in change bucket thanks again s/s johnny

[RWB]

Also, silver or silver plating will have a slightly off-white color, rather then the gray of your coin. The plating is likely zinc.