Airmail booklet, 1928 "Lindbergh", 61¢, blue cover, complete unexploded booklet containing 10¢ Lindbergh Booklet Pane with Tab at Bottom (position i) and one normal tab pane (position B), o.g., never hinged, bright and fresh, Extremely Fine and choice; with 2010 P.F. certificate. Scott No. BKC1 var.  $13,500. GREAT AIRMAIL AND BOOKLET RARITY. THIS BEING ONE OF FIVE KNOWN EXAMPLES OF THE 10¢ LINDBERGH BOOKLET WITH TAB AT BOTTOM. $0 (Image)