US #C15, 1930 $2.60 Zeppelin stamp on flown cover, from the June 3rd 1930 Graf Zeppelin flight from Lakehurst to Friedrichshafen, mailed at Varick St. Sta. New York May 31 1930. Usual cachets on front and Friedrichshafen June 6, 1930 receiver on back. Frost Cat. No. 8.) 127-49E. Frost 2005 CV $1800