It's hard to say.
This is the only real documentation we have of this particular fig. The color differentiation could just have to do with main and breba crops, this is just speculation though.
If he really had the real thing that would be a mind blowingly valuable find, sadly their are a lot of fakes out their so it's only natural to be skeptical. But until I see a ripe fig their's no way to be sure.
This way typed by phone so excuse my brevity and typing errors.