I don't see any type of glue and that is not Roosevelt. I did a side by side comparison with a Wheat Cent overlay and I see the match. I have seen something like this before. It is some kind of crazy Lamination on the Reverse of the Cent which allows that part of the Obverse to show through. This probably occurred during the milling of the Cent but that Lamination fell off or came apart afterwards.
Are you talking about progressive indirect design transfer ? Cause this is not that ... Heres what one of thoses look like
Look at the top of the head, you can see where the rest of the head ( glue ) broke off of this coin ..
If the feature is recessed (and it appears to be) then this is a brockage from a struck fragment. An irregular piece of metal was die-struck on both faces and remained firmly seated on the reverse (anvil) die when a fresh planchet (this coin) was fed in on top of it.
It is an incuse, mirror-image version of Abe Lincoln's head. Which is what you'd expect of such an error.