Hello. I searched for the stamp, and I found it is
USA scott 4806e from 2013. Apparently, only 100 mini sheets were
issued by USPS with an "error of the error" :)
The regular 2$ stamp is actually the inverted jenny, and 100
sheets were printed with the plane "upside up". If the
ebay listing in the real deal, at 200$ it is a bargain.
Check this other
ebay listing:
https://www.ebay.com/itm/US-4806e-2...153160655952where somebody sells a single stamp from the error sheet for
more than half a million bucks (I am not kidding, check the listing). By the way, that stamp is certified.
Personally, I wouldn't even think on spending hundreds or
thousands of dollars for stamps which I can only see through a
bad cell phone photograph.
Conversely, if that sheet is the real deal, the seller should
think seriously on getting a scanner or a good camera and posting
nice photos of the sheet. That way, he/she could get 1000's of
dollars (or even more), instead of only a few hundreds offered
by some few brave buyers.
Another personal thought: I would never spend 1000's of dollars
on a modern stamp from 2013, however rare it is. Actually, all
over the world there are personal "design your own stamp" stamps
which are even more rare :-P If USPS decides to issue only 100
sheets of a stamp, that's their decision. I am not falling for it.
I prefer to spend 10-20$ for a real upright 1918 Jenny (lol).