I acquired this cover from an old dealer stock.  It was originally priced at $25.00 in the late 1990's.  This is a first flight cover featuring the 5-cent "Globe and Airplane" issue of 1928 (Scott Catalog #650).  The cachet shows "First Flight - Omaha, Nebr. May 1, 1929 - St. Louis - Omaha" and has a great image of a plane.  The cancellation shows Omaha, Mebr., Burlington Sta. - May 1, 11:30 AM - 1929".  It is also signed in pencil "W. Hunter".  The reverse has a postmark "Saint Paul Minn, May 9  AM AIR MAIL - 1929".  We are offering this cover at 40% off the 1990's dealer price of $25.00.