Fowler, Albert Vann. Prospectus for Cranberry Lake 1845-1959.  Blue Mountain Lake: Adirondack Museum, nd. 5.25" x 8", 4 pp. Advertisement for the book, with an order form on the back page. You need this to lay in your copy. Unevenly discolored (more pronounced in the scan), with a couple old fold markks. Very good.