1983 penny with extra mark

Hello I am new to coin collecting and noticed a penny with an extra mark on the back side. I've included a photo and hopefully someone can explain whether or not this is worth holding onto.

 

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Your 1983 Cent is a Copper Plated Zinc coin...
That is a plating issue called a Plating Bubble.

Not worth saving IMHO

 

What Paddy said.

 

Agreed. Keep searching though. Can’t find anything if you don’t look!

 

Thanks a lot! This sure is a fun hobby.

 

What would be a good find as far as penny errors are concerned? Do they all have mint marks? I've noticed one with no mint mark, but looked into it and there was a certain year when they started the mint mark.

 

Usually the cents without mint marks are Philadelphia.

 

http://www.lincolncentresource.com/index.html

https://www.fredweinberg.com/links/


http://www.doubleddie.com/1801.html

Heres some good sites to get you started!

 

Always look for DDOs, DDRs, Wide AMs, Close AM, Die Clashes, etc. Look up different errors or buy a book. Cherrypicker's Guide is a great resource.