NO doubling what-so-ever, yet again. 1972S-1DO-001P is a proof doubled die. Your coin is CLEARLY NOT A PROOF and is NOT a doubled die.
Anthony please take some time to understand the minting process, and terminology. It doesn't seem that you are getting it. People on you tube make this look like it is real easy to find a Doubled Die or a Mint Error. Yet over 90% don't have a clue themselves. I see that you have the passion. But I would encourage you to do a lot of reading and then do some more. Use the search feature on CT, you will find months and months of useful resources ( If you really want to learn). This is not easy, Errors and Varietys that have a premium over face value have that value because they can't be found just by picking up a coin. Good luck!