Uno nove sette sette (One Nine Seven Seven)

Alighiero Boetti (1940-1994) Uno nove sette sette (One Nine Seven Seven) signed, inscribed and dated '"1977" alighiero e boetti 4 fogli indivisibili' (on the reverse of the first and fourth panel) ink on paper each: 39 3/8 x 27 5/8in. (100 x 70cm.) overall: 39 3/8 x 110 1/8in. (100 x 280cm.) Executed in 1977