A handbook of aeronautics and flight technology. According to the latest inventions and experiences, presented in a way that is generally understandable for old and young, foreword by Count Zeppelin, 314 images, Stuttgart/Berlin/Leipzig: Union Deutsche Verlagsgesellschaft, 1909, ill. Whole cloth, signs of age and wear (among others, the cover is rubbed, damaged, the title is detached and has a defect, the colored title picture is missing, the flyleaf is stained)
