This is up in the current Clean Sweep auction (which is pretty loaded if you haven't checked it out). For anyone who has seen any of the few Cum Posey signed diplomas out there, this signature and "Director" line look identical to those. The problem is that those always have names signed on lines directly above and/or below Posey's. An example:
Quite simply, this looks like a re-creation to me, a laser copy of a small piece of one of those original diplomas.
Any thoughts?