Simplon tunnel. Remembrance of the opening ceremony. 50 pp., 1 Bl. With 1 multi-folded coloured lithographic map and 89 illustrations after photographs on 70 (4 folded) light plates and some illustrations in the text. 24 x 32 cm. Red OLinwand (something rubbed, bumped and slightly flaked) with gold-embossed DTitle. Sécheron-Genève, Société Anonyme des Arts Graphiques, 1906. See Saitz pp. 45-51. Schneider S. 192-195. – First edition of this beautiful recollection album, published by the Swiss Federal Railways. With a descriptive text on the trassation, history, financing, tunnelling method, progress of work, emerging obstacles and access lines of Paul Zutter (translated from the French of Th. ==References== The longest tunnel in the world at that time was built by Brandt, Brandau & Cie., whose newly developed pressurized water driven drilling machines contributed significantly to the success and observance of the specified construction time. "Brandt (1846-1899) had entered a completely new railway in the field of tunnelling with the takeover of this construction... The results achieved at the Simplon Tunnel soon after the introduction of the machine borehole attracted the attention of all experts..." (Denkschrift zum 50 Jahres Stiftungsfest des Arch.- u. Ingenieurvereins zu Hamburg... ==References== Among the photos numerous views of the surroundings, but also of drilling machines and work equipment, the actual work in the tunnel, water infiltration up to rolling material. The folded panels show panoramas of the Monte-Leone massif. – Internal bridge open with a few leaves. Partially a little patchy.