Certificate of authenticity by Archivio Salvo. Photo-certificate signed by the artist
It is an important work of high quality by Salvo as also demonstrated by the prestigious provenance, exhibition and publication for the Exhibition held by the Mazzoleni Gallery in Turin: "SALVO Opere 1974-2004", 19/03 - 15/05/2004, Litograf, Rosta 2004, page 101, ill.n.45, repr. coloured.
Signed on the reverse