"The Big Brother is watching you from the up corner of women's locker room" - little brother! :)
This is an old 20ft banknote from kommunist period. It means more than an image from money this picture was used in a feature film:
IMDB

I think nobody ever made relief in "staired" form. It was quite tricky to make! Only one point that give you a right view! Check it in 3D!