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Lot description
signed and numbered 69/100 on the reverse, executed in 1965, edition Mat, Collection 65, aluminium, magnets, metallic powder and 115 volt power socket (firmato e numerato 69/100 sul retro, eseguito nel 1965, edizione Mat, Collection 65, alluminio, calamite, polvere metallica e presa elettrica 115 volt)