Release Message:  The tribar appears to be a solid object, made of three straight beams of square cross-section which meet pairwise at right angles at the vertices of the triangle they form. The beams may be broken, forming cubes or cuboids. Originally created by Oscar Reutersvard.

Description:  The Penrose triangle was first created by the Swedish artist Oscar Reutersv_rd in 1934. The mathematician Roger Penrose independently devised and popularized it in the 1950s, describing it as "impossibility in its purest form".