 He used pictures taken from fashion magazines, instead of from news magazines as in his works of 1963–1969.Through rigorous use of geometry, Devalle explored the faces and figures he appropriated from magazines, to produce new structural frameworks, the results of which Devalle called "real surprises".Invited by Renato Barilli, Tommaso Trini and Maurizio Calvesi, he participated in "Gennaio '70", the Biennale of young Bolognese artists; in "Arte e Critica", in Modena, following a recommendation by Renato Barilli; in "Environment", a documentary show organized by the Italian section of UNESCO in Paris ("Farfalla Night!