11. Frankfurt/Berlin, Schmidt, s.d. (ca. 1900), in-folio, 41 x 29 cm, publisher's half cloth with three toned lithographic front cover, paste down and fly leaves decorated with the company's monogram, colored title + 18 plates mounted on guards, each printed with the company's ink and with different printing techniques, each plate with a semi transparent protectetive leaf. The tree last plates depict the ascension of the ''Graf Zeppelin'' balloon in Dresden. Perfect state of preservation. A beautiful example of high quality German typography at the beginning of the 20th century.