I have 52 pages plus two front covers dated January 1897 and one dated February 1897. The remaining are single colored pages with names of birds on each page. I am not sure if these were part of the individual magazines and someone just kept the colored prints. All marked Nature Study Publishing Company, Office: Fisher Building Chicago. Some pages are marked supplement as well. These are individual pages. Good coloring, no rips or tears or major damage. Some have tiniest bit of wear on edges, corners etc. See photos.  Each page measures 7.25" by 10".