USAF "Keep ‘Em Flying" U.S. Air Force 1969 Vietnam Era Water Slide Decal Sticker.  Sticker is new old stock and measures 4 inches across.  Back of the sticker shows it was made by HyaLac Meyercord Company out of Los Angeles.  Very cool piece of US Air Force history.  See photos for more information or feel free to ask any questions you may have.