That same seller had a supposed Jackie Robinson signature on a postcard end for under $100 that I was watching.
I thought the signature looked funny, so I watched to see where it would end. Could just be the scan, but the signature looks a bit shaky.
http://www.ebay.com/itm/Baseball-Jac...#ht_898wt_1199
I don't know the real old stuff well, so I wouldn't begin to know if some of what else he is selling might be bogus. Anyone familiar with this seller?