I don't have a single Cuban or Negro League item in my collection, but I found this thread (about some mysterious Cuban cards started back in March by member Scocs) quite fascinating and informative ...
What's the real deal with these Cuban cards?
And to a lesser extent, but related content, this recent thread started by Phil Garry was interesting and had it all: a high dollar eBay auction, a cool RPPC, drama, a post or two from Leon [hi, Leon!
], bid retraction accusations, ice cream, forgiveness, and an informative post from Josh Leland...
Negro League Postcard on E-Bay