1982P on copper planchet, i don’t know if I found something, but I do think I see some doubling on this reverse
My intention is not to be rude but there are probably 5,000 threads on here with an answer to your question. Do a search in the search bar and you will have all the information you could ever hope to have. Good luck
As frankjg indicated there are several threads regarding the types of doubling that appears on coins. Here is a website comparison that might be helpful. The coin you have shows machine doubling. https://www.ngccoin.com/news/article/5688/Double-Dies-vs-Machine-Doubling/