Acrilu Set of Sequential Teaching Puzzles in Great Orange Slide Top Box color theory exercise it is protected by a

it is protected by a wonderfully worn leather cover

I've only recently learned that carved wooden "whimsies" like this one are a thing

others are more cerebral

I'd guess it was once mounted on an outdoor wall somewhere

Acrilu Set of Sequential Teaching Puzzles in Great Orange Slide Top Box color theory exercise it is protected by aI believe Acrilu was a Brazilian company that produced educational toys, and though I have not been able to find out much about it, I really love the design of this one. Contained within the long slide top box with terrific orange top are five sets of sequential tiles, six tiles per set, which take some thought to arrange into their proper orders! I believe the images are screen prints on cardboard, mounted to chipboard backs. Pretty great graphics I