Bulletin of the Imperial Russian Geographical Society for 1856, book 1-6 (annual set) In Russian (ask us if in doubt)/Vestnik Imperatorskogo Russkogo Geograficheskogo Obshchestva za 1856 g. kn. 1-6 (godovoy komplekt)St. Eduard Pratz Printing House, 1855.. SKUalbc1a1a595a2a15380.