Those are plating blisters. Not an error they are very common on copper coated zinc cents. Another common occurrence is Linear plating blisters.
Hiya and welcome to CoinTalk, @pennycounter - Now, a great thing you could do because you say you are new to error searching, would be to go search about "plating blisters" and "linear plating blisters" and read for a few minutes. p.s. I am new, too!
the case was all scratched..now can see it real well..looks like another set of letters that the zinc is now off so it has a silver color on the other letters...