Robert Mangold (born 1937) Two Columns, C , 2004 Etching with relief in colors on Mulberry paper mounted to Arches cover white paper, signed in pencil and numbered 27/30 (there were also 10 artist's proofs), with full margins, framed. 40 x 29 1/4in (101.6 x 74.3cm) sheet 43 x 31 5/8in (109.2 x 80.3cm)