Edward Burtynsky b.1955 Dam #6, Yangtze River, China digital chromogenic print, mounted, signed in ink on a label on the reverse, framed, a Robert Koch Gallery, San Francisco, label on the reverse, 2005, no. 4 in an edition of 10 plus 2 artist's proofs image: 26 ½ by 34 in. (67.3 by 86.4 cm.) frame: 35 by 42 ¼ in. (88.9 by 107.3 cm.)