Oguru Saburo Jigsaw Puzzle

This Jigsaw puzzle was found at a school fete, we loved the design.
It appears to be the design work of Japan's Oguru Saburo who has designed for Swiss "play object" maker Naef.
Each piece of the puzzle is lovely to play with. The animals are often taken out and swam or walked across the floor. It is quite a tricky puzzle and there are times when the pieces are not placed back in their frame.
Beautifully designed wooden toys still look great when left scattered by the kids in play.