BRUCE NAUMAN (°1941) 'Tone Mirror', 1974. Lithograph on Copperplate Deluxe paper (dry-stamped). Signed and numbered 60/100 in pencil. From portfolio 'Mirrors of the Mind'. Published by Multiples Inc. & Castelli Graphics, New York. Frame. 720 x 975 mm (960 x 1210 mm) Lit.: Cordes 1989, nr. 26/ Schwarz 2021, nr. 1975.02G.

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