Rokus van Blokland
Corry van Blokland Mobach
1968 Perforated cube

Three-dimensional penetration of a cube with movable cylinders.

1955 Cube to zero

Change of form by maximal removing quantity.

1956 Cube, continuous movement

Change of form by removing quantity.

1957 Remove space

Change of form by maximal removing quantity.

1964 Prototype Blockland

Removing quantity.

1958 Blocks Sio Techniko