Umberto Mariani ( Milano  1936 )

"Alfabeto afono C (bianco e nero)" 1971-1975 2 vacuum-moulded flocked polystyrene multiples   Signed and numbered 43/100 on the reverse (black) Signed and numbered 62/100 on the reverse (white) Arti Grafiche Giacone, Chieri   Provenance Private collection, Milan

Estimate € 350 - 500