The case of issuing a privilege to Count Chatsky for a sugar filter invented by him.N. 24/XI;V.U.3/XII;1841

The case of issuing a privilege to Count Chatsky for a sugar filter invented by him.N. 24/XI;V.U.3/XII;1841 / Department of State Economy.- 1841. -8 l .. - (Department of state savings of the State Council. Inventory No. 3. 1841).-Film..I. Department of State Economy ..Electronic copy source: RGIAOriginal storage location: RGIA f.1152 op.3 1841 d.180