Etching from 'L'albero poeta', folder containing 10 original engraving of Enrico Baj, Pietro Cascella, Alik Cavaliere, Roberto Crippa, Lucio Fontana, Gastone Novelli, Achille Perilli, Arnaldo Pomodoro, Giò Pomodoro, Francesco Somaini; Publisher Galleria Schwarz, Milano; Printer Giorgio Upiglio, Milano; Paper sizes 41,5 x 50 cm; Image sizes 24 x 37 cm; Signed lower right in pencil by the Artist; Certificate of guarantee.