Two items: an airmail cover postmarked to commemorate the Hindenburg's early flights to America in May 1936, signed in fountain pen by Zeppelin Company chairman Dr. Hugo Eckener and Hindenburg pilot Ernst Lehmann; and a matte-finish 4 x 5.75 postcard photo of a drawing of Eckener by Gustav Eyb, signed in fountain pen by Dr. Hugo Eckener. In overall fine condition.