Others will no doubt chime in but I doubt that white Herse bike is a fake, it's probably just a lower line model, not the deluxe Rene Herse.
This bike is poorly presented and there are not enough pics / measurements to determine its "bona fides".
When you see one of the top line RH bikes, they really pop, they are extraordinary. The one currently offered by ebay seller "senditnow" is very nice, an all chrome mixte, take apart "demontable" with many goodies. I have done business with this seller and recommend them highly. The RH he's offering deserves a good home!
http://ebay.com/
Mark Petry
Bainbridge Island, WA 206 618 9642 <mailto:mark@petry.org> mark@petry.org