Octagon vs Cube 1981
Star Cube J.C. Constantin 80's
Twisted Octagonal Prism 1981
Ring Cube 1981
Ramp Cube J.C, Constantin 80's
Spiral Edges Cube 1981
House cube 1986 J.C. Constantin
Waterdrop J.C. Constantin 80's
Fractured Cube 80's
Piece Shuffle Cube IV 80's