It’s a possibility, I saw it on the roadshow but I wonder, if it is the real deal why e-bay and not a more targeted auction house, like Cowan’s or James Julia. I wouldn't think the guys at the roadshow would recommend e-bay as a auction house to sell the flag.
I’d need more info then what he’s offering with verifiable sources.
Happy Trails!
Tom Martin
www.Confederate-Flags.org