Label of Galleria d'Arte Moderna Viotti, Torino on the reverse.
Work displayed at the exhibition "Leherb. Manifestazione per la distruzione del tempo", November 18 - December 1 1967, Galleria d'Arte Moderna Viotti, Torino (exhibition catalog, ref. no. p.10). Work cited with caption in the relative catalog published for the exhibition printed by Tipo-Lito Camedda, Torino, 1967
Signed bottom left
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