*A buyer’s premium of 18% of the winning bid was added as part of the total purchase price on all lots in this sale. Buyers were responsible for applicable sales tax, customs duty and any other prescribed charges. By placing a bid, bidders agreed to the terms and conditions in effect at the time of the sale.
65c Green, Graf Zeppelin (C13). Right plate no. 20079 block of four tied by "Washington, D.C. Apr 19 5 PM 1930" First Day of Issue duplex datestamp on flown cover with Gorham cachet of large Zeppelin, proper flight cachets and Lakehurst backstamp, Very Fine