https://www.youtube.com/watch?v=GYmRXRlxIvk
Start the video at 4:13.
In this video, Aaron presented to Letterman his own 1 of 1 card. Right after that, however, he pulled out his own RC card (1954 Topps) and placed it next to the Letterman card. Was this card from his own personal collection?
It has rounded corners, but the centering is pretty decent. I would say probably VG - 3.
And yes, I know this video is a little old, but I thought it was pretty cool.