1909, 1. Trip period, barographs-curved to the about one and a half hour second test drive at the 26.10. From and to One cell, personally signed from captain Georg Hacker with entry the times from liftoff and Landing as well date and \"2. Barograph curve to the 44. Trip of the Z 3\", air pressure curve by the device recorded with an attained level from approximate 550 Meters, alongside the violet and only short-term aboard of an air ship used oval two ring cancel \"airship Z III Signal postal service\", as usual folded, superb