@vashti, first welcome to CCF. Second, to add to your knowledge, consider looking at the last page or two of threads on this subforum (US Modern Variety and Error Coins). That plus the error-ref website are great resources.
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz