Christo, Wrapped Trees, Project for the Fondation Beyeler, Berower Park, Riehen, Switzerland, collage 1998,
graphite, enamel paint, colored pencil, wax crayon, photograph by Wolfgang Volz,
and printed map, on paperboard, 35.5 x 55.7 (14 x 21 15/16).
National Gallery of Art, Washington, The Dorothy and Herbert Vogel Collection,
Promised Gift of Dorothy and Herbert Vogel, 2001
© Christo 1998