Airmail, 1930, 65¢ & $1.30 Graf Zeppelins, singles on separate 2¢ Grant flight postal cards, tied by 1930 machine cancels, purple U.S. and red German flight cachets, both with green Lakehurst receivers, Very Fine, an attractive flight pair. Scott No. C13, C14  Estimate $200 - 300. $0 (Image)

Airmail, 1930, 65¢ & $1.30 Graf Zeppelins, singles on separate 1¢ Jefferson flight postal cards, tied by 1930 machine cancels, purple U.S. and red German flight cachets, $1.30 with green Lakehurst receiver on reverse, Very Fine, a nice Zepp duo. Scott No. C13, C14  Estimate $200 - 300. $0 (Image)