Several works by Christo (b.1935) and Jeanne-Claude (1935-2009) are included in the sale at New York firm Roland on September 25. They come from the collection of Dr Richard and Odile Stern. This collage drawing of a wrapped tree, signed and dated lower right Christo 1968, measures 2ft 4in x 22in (72 x 57cm) and is estimated at $40,000-60,000.
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