I recently got my Bob Gibson rookie card graded and it came back a PSA 3. There's a crease in the upper left going through the first 'b' in "bob," and what I guess is technically a crease in the border beneath the team logo.
I'm looking to get a nicer Gibby for my set, so if someone has a higher grade #514 and are interested in trading it for some sort of package deal that includes the card shown here, please contact me. This way, in the end you'll still have a Bob Gibson rookie card. (If you don't want my card included in a trade for a nicer version of Gibson, that's fine, too.) Check out my bucket to see what sorts of things I have to trade.
On a side note...the 1963 #537 Pete Rose RC pictured here is also available for trade or sale. I bought a nicer one, so I'd be very interested in defraying some of that cost if anyone feels like making an offer.
If you have any questions or need more pictures/scans, please give me a shout.