Impossible triangle by Hans de Koning

Today I received a postage with new wooden work by Hans de Koning. It's a flat contruction of traditional Penrose tribar contructed from three kinds of wood.

Wood work by Hans de Koning

Today I received a postage with wood work by Hans de Koning (see above). The shapes of the most of his works are based on impossible figures. His works are flat, but he uses different kinds of wood to make three-dimensional effect. Wood planks with different hues imitate sides slope and opacity of the impossible figure.

You can see more his work in his Picasa album and at the site Impossible World.