What you need to do is look at some of the doubled dies that are listed on other sites to see what a true doubled die looks like. Only then will you be able to tell the difference between a doubled die, machine doubling and die deterioration. Chris
Cherry picking when you can't spot a ripe one is the pits. Here's the guide: https://www.whitman.com/store/Inven...de-to-Rare-Die-Varieties-6th-Edition-Volume-I Pay special attention to the "How to use this book" and all "Appendices." sections. They're easy to overlook.
Here is something that helped me when I was first starting to collect errors. I put the coins I thought were big errors into rolls, and stashed them away. When I started to understand what the coin was supposed to look like, what was damage, and what the difference between all the doubling that can be found during the minting process. I said, I would open them and see if I found anything good. The rolls are still sitting in an ammo case in my closet. Though I have gained a lot of knowledge, especially from CT. I feel that I would probably be disappointed with what I put away, so their they sit.