It is likely that there is not a physical document. It is also likely that there is a "late filing" for a COLB that was "on record" but never acted upon because of lack of documentation.
Grandma did it.
The polls were tanking like falling from a mountain cliff (like Paul Ryan's wheel-barring grandmother over the cliff) when Corsi's book became #1 selling on Amazon.com way before released!
Donald Trump suddenly came out of nowhere stirring up the crowd and shutting up the pandering media's talking heads!!
Then you have the claims of killing OBL with NO proof or DNA. Neighboring Pakistanis say they killed the wrong guy, the owner of the "Mansion"(?) which looked like a pig stall!!!