An Age of Barns by Eric Sloane a Special Natural History Bonus "For the Bicentennial Year, The American Museum has selected this extended excerpt from the book An Age of Barns as a bonus to Museum members. Published in 1976 and Great illustrations throughout the book.  It is a paperback and measures about 10 3/4" by 9".  It is in good condition - the cover has the corner folded.  See pictures for best assessment of condition.  Please ask questions.