http://www.ebay.com/itm/BELTZERS-Neb...item19e3d133a1
This is a very cool postcard and one I've never seen before...that said I'm not so sure that price is anywhere near reasonable. Printed postcards of the NI team usually sell in the $30-$50 range for "common" cards...some of the rarer types and even one of a kind real photo postcards sell in the $100-$150 range. Not sure why this seller thinks this is anywhere near worth $500.
edited to add: the postmark and stamp on the front are also a detractor IMO.
On the plus side I always like seeing something I've never seen before that I want to add to my collection...this makes 2 postcards of the Nebraska Indians that I need to keep an eye out for.