Zeppelin first flight cover from Buenos Aires (23 May, 1930) to New York City by way of Lakehurst, New Jersey (Green Graf Zeppelin handstamp). Uses the complete set #C20-C24 for the franking. Lightly soiled, a little toned with pencil marks on the reverse. (Image)

Zeppelin first flight cover (oversize) from Buenos Aires (23 May, 1930) to New Orleans by way of Lakehurst, New Jersey (Green Graf Zeppelin handstamp). Uses #C20 x3, C21, C23 x4 and C27 to pay the six peso rate. Lightly soiled, a little wrinkly, but clear markings. (Image)

Matching set of Columbus topical 1st days one with #91 and #92, the other two with one of each. All with minor flaws but overall Fine. (Image)