Now I'm no expert on identifying plants but I'm starting to like crypts a lot and that looks way more like C. petchii to me.
I'm with Alto on this one, looks suspiciously close to a wendtii. I've got the wendtii brown growing and it could be it's twin, tho mine is way smaller.
It was a display tank from the ADA gallery in Japan as a promotion tank setup for the ADA solar.. Pitty nobody bothered to upload a pig with enough resolution to read the sign on the wall.
I wonder couldn't ADA solve the mystery with contacting them.. Would be a hell of a service if the could.