You have MD as stated and damage from probably a coin roller. The easiest way to tell the difference is the size of the devices, if they are not larger, counting what you see as doubling, then more than likely its MD, you can see how it cuts into it's normal size.
Here is a link to show you and explain more in depth. Bookmark this site to use in the future.
LINK
https://www.error-ref.com/?s=machine+doubling
-makecents-
Edited by -makecents-
12/07/2021 8:29 pm