Rubik's Pictured cubes at Amsterdam and Paris

I'm from Mexico and I'm having a trip at Europe, I saw there are some exclusive cubes at the Van Gogh and Louvre museum and I have a few questions lol

1.- How much are they? 2.- Are they Rubik's brand? 3.- You can only get them at those museums right? Are there any other cube like that in another place?

I've seen it cost 30€ which is expensive af but I'd probably be worth if they're unique lol