1928 Chicago - St. Louis CAM2 "Lindbergh Again Flies the Air Mail", airmail cover franked with 10¢ Lindbergh tied by "Chicago, Ill., Feb 21, 1928" airmail slogan machine postmark, flight cachet handstamp and signed C.A. Lindbergh, Very Fine, a scarce Lindbergh signed flight cover. Estimate  $500 - 750. $0 (Image)