On the reverse: signature, date and title; label XXXII Biennale d'Arte, Venice with data of the work; label XXXII Biennale d'Arte, Venice, with n. 176; Art Gallery label, Seregno, with data of the work. Authentication on photo by Baggini Rosangela, dated 1977, with stamp Studio 15, Milan
Exhibitions: 1964, XXXII International Art Biennale of Venice.