En
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On resolving the search and mining of precious and colored stones in all places of Eastern Siberia and the Amur Region.December 2, 1858 - February 4, 1859 - 1858. -18 l .. - (Second Siberian Committee. Inventory inventory No. 7.).-Film..Electronic copy source: RGIAOriginal storage location: RGIA f.1265 op.7 d.270
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