Inside the tunnelhall of the1.300 meter long tunnel in the Amur-region. From the left engineer Liverovski, the Amur-railroad's boss; engineer Speranskij, the site engineer of the 1.300 meter long tunnel («Bauleiter des Tunnels der 123 Werst»); engineer Skongarevskij, the Amur-railroad's manager; engineer Wourtzel, the director of the imperial Russian railroad construction; Fridtjof Nansen, who was invited by Wourtzel to see the new railroad that was under construction in the East Siberia and Amur region; engineer Batjen, engineer Rosenberg, chief surveyor of the Amur railroad; Dr. Fedorov, the Amur railroad's medical physician. One of the pictures from the journey to Siberia between Aug. 2 and Oct. 26, 1913. Fridtjof Nansen continued his trans-Siberian journey by railroad, some of it recently finished, from Krasnoyarsk all the way to Vladivostok.