At the request of the lieutenant Benardaki for permission to arrange a plant in the Tobolsk province for melting the copper ores...

At the request of the lieutenant Benardaki for permission to arrange a plant in the Tobolsk province for melting the copper ores discovered by him in the Kyrgyz steppe, and on the relay of his subsequently the device of this plant.November 13, 1859, 23 March 1863.- 1859. -19 l .. - (Second Siberian Committee. Inventory inventory No. 8.).-Film..Electronic copy source: RGIAOriginal storage location: RGIA f.1265 op.8 d.238