Lot 907
Airmail, 1933, 50¢ "Chicago" Zeppelin, block of four, on 1933 Century of Progress round flight cover with scarce blue illustrated Zeppelin corner card, tied by "Varick St. Annex, N.Y., Oct 4, 1933" machine postmark, purple U.S. and red German flight cachets, Very Fine.Scott No. C18 Estimate $150 - 200.
Realized: $160