I really don't sell it. I usually collect it myself. Even selling autographed photos can't be that cheap. Now many organizations sell fake goods. Several people sell the same thing and ask for ID photos. Different people give you the same thing.
Don't trust things sold online easily. If they are really so cheap, why don't you collect more certified signature photos yourself? Cheap goods are not good, so the price credibility is not high. Don't be easily deceived by swindlers.