Vintage 70’s Pierre Giraudon Lucite Radiometer

VINTAGE 1970 SOLAR RADIOMETER KINETIC LUCITE SPACE AGE OP ART GIRAUDON SCULPTURE The kinetic sphere inside of the cube moves faster, depending on the amount of light it is exposed to. These pieces were made between 1960 and 1970. There are three tiny flaws on the corners as shown in the photos. These do not affect the beauty . This has a very strong cool factor! I purchased this from a lady that was moving back to France.