I have a bunch of Roberto Clemente cards up for trade. In general, I'm especially looking to find upgrades to 2 Clementes of my own, 1963 Fleer #56 and 1966 Topps #300, so if you have nice versions of either of those, I'd be very interested. I may need to upgrade other Clementes, too. So if you're interested in any of these guys, LMK what you have.
Otherwise, I could always use upgrades to all sorts of HOF'ers from the 60's and I still need a few 1961 Topps cards - Aaron, Berra and a bunch of high number All Stars.
Some of these cards are in nice shape while others are dogs, but I put scans of all of them so you can see what I have available. If you have any questions, I'll be happy to answer them.
