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Sotheby auction of Audubon's 'Birds of America'
Monday Dec 6, 2010 5:27 AM The book, in the 'double elephant folio' size of 97 x 65cm, portrays all the birds life-size and is estimated to fetch 4 to 6 million pounds ($6,271,558 to 9,407,337) in the sale of 'Magnificent Books, Manuscripts and Drawings' on Dec. 7.