I have googled the astonishing coincidences paper with the coin on it and haven't found another with Lincoln and Kennedys head next to each other, the coin is always in the middle with a head on either side of the coin.
Counterstamp Novelty item. It's been around for years! Definitely not a mint error. Oh wait.. You mean the paper? Interesting!.. I don't think I have seen one like that.
This company has the same Gotapura.com, (I am in no way associated with this company, just found it on the web)