This was made in the shape of an origami crane. But it also has a secretcompartment. It was difficult to make this shape using straight lines. But the mechanism is very easy.
This work was produced by Karakuri Creation Group’s craftsmen, from a selected idea of “5th Karakuri Puzzle Idea Contest”.

Original idea by Kyoko Sueda
Hand-crafted by Akio Kamei (Karakuri Creation Group)