Ferris, Richard. [from old catalog] · New York, T. Nelson and sons · leaf 328
V … 328 BALLOONS: THE DIRIGIBLE, compared with its motive power is larger than anyother dirigible in commission. In May^ 1909^ the rebuilt ^^Zeppelin III/ now re-christened ^^ Zeppelin 11/after many successful shortflights was prepared for the Government trial. OnMay 29^ 1909^ with a crew of six men.…
Aeronautics
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