www.elitefourum.com/t/pokemon-tcg-picture-dump/17973/1
www.elitefourum.com/t/unreleased-e-reader-cards/10872/24
I’m so jealous of whoever bought this lot for a measly 120,000 Japanese Yen (~1,1k USD) in 2014… Look at all those sample Pikachus (and the additional Eevees, Pichus, Mew, and others to potentially resell for a huge profit). 
Greetz,
Quuador