1928, 5¢ Civil Aeronautics, o.g., never hinged, virtually perfect centering amid huge evenly balanced margins all around, rich deep color and bright Post Office freshness, a Superb jumbo, a magnificent mammoth stamp, this being one of eleven to obtain this jumbo grade and only seven grading higher; with 2008 P.S.E. Graded certificate (Superb 98J, SMQ $185 for 98). Scott No. 650  $7. $0 (Image)