The case of permitting the secret adviser to Knyazhevich to make medical salts and soda on one of the Perekop lakes.N. 15/IX;V.U...

The case of permitting the secret adviser to Knyazhevich to make medical salts and soda on one of the Perekop lakes.N. 15/IX;V.U.21/x.1842 / Department of State Economy.- 1842. -14 l .. - (Department of state savings of the State Council. Inventory No. 3. 1842).-Film..I. Department of State Economy ..Electronic copy source: RGIAOriginal storage location: RGIA f.1152 op.3 1842 d.145