Alexander Calder - Letter "Z", 1973 Photolithography on paper, signed in pencil and numbered 2643/5000, publisher's blind stamp. Publisher: BolaffiArte, Italy, 1973. Edition proof is printed on the back. Good condition, 30 x 23.5 cm Photolithograph on paper, signed in pencil and numbered 2643/5000, publisher's blind stamp. Publisher: BolaffiArte, Italy, 1973. The proof is printed on the reverse. Good condition, 30 x 23.5 cm

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