Ideas on what to do with this.

rexvos

I am working on a NM+ player run of Unitas. Just need a few to finish it. Would like to display this with them or separately. I actually found this in a small collection I recently purchased. Very familiar with his signature and it looks legit to me.

LarkinCollector

Red flip, Index Card it (formerly blue flip). If you don't like oversize holders, it appears you could cut it down to trading card size without affecting the writing.