GIACOMO BALLA (TORINO 1871 - ROMA 1958) "Scatola quadrata" oil on metal 5.5x18.5x18.5 cm Provenance Casa Balla, Rome Galleria G. Molino, Rome Molino Collection, Caresana Molino Collection, Milan This work is accompanied by photo-certificate of authenticity issued by Luce Balla The authenticity of the work has been confirmed by Dr. Elena Gigli, Head of Archivio Gigli per l'Opera di Giacomo Balla