CRIPPA Roberto (Monza 1921-05-07 - Bresso 1972-03-19) Spirali 1951 olio su tela oil on canvas cm. 60 x 120 Autentica del figlio Roberto Crippa Jr. con n. ADN F/2/VII/03 Certificate of the son Roberto Crippa Jr. under no. ADN F/2/VII/03 Firma, data "R. Crippa, 51"; numerazione e firma del figlio (al retro) Signed, dated "R. Crippa, 51"; numbered and signed by the son (on the reverse)