The privilege case is the real state adviser Dmitry Ermolaev, on a new method of distillation.N. 28/II;By 18/IV;1838

The privilege case is the real state adviser Dmitry Ermolaev, on a new method of distillation.N. 28/II;By 18/IV;1838 / Department of State Economy.- 1838. -17 l .. - (Department of state savings of the State Council. Inventory No. 2. 1838).-Film..I. Department of State Economy ..Electronic copy source: RGIAOriginal storage location: RGIA f.1152 op.2 1838 d.68