Airmail, 1930, $1.30 Graf Zeppelin. Tied by American Postal Machine Company, Lakehurst, N.J., Jun 2, 1930 flag machine cancel on flight cover, purple U.S. and red German flight cachet handstamps, Friedrichshafen transit backstamp, Very Fine, a nice usage of the Lakehurst, N.J. flag cancel on a Zeppelin flight cover. Scott No. C14  Estimate $200 - 300. $0 (Image)

Airmail, 1930, $1.30 Graf Zeppelin. Tied by "Brooklyn, N.Y., Jun 2, 1930" duplex postmark on flight cover, U.S. and German flight cachets, Very Fine. Scott No. C14  Estimate $150 - 200. $0 (Image)

Airmail, 1930, $1.30 Graf Zeppelin. Well centered, tied by oval handstamp with "Reading, Pa., May 24, 1930" duplex postmark below, on flight cover with U.S. and German flight cachets, Very Fine. Scott No. C14  Estimate $150 - 200. $0 (Image)