1. Territory of Russia (collection). 2. Dredges. 3. Dredging shells - River works - Vytegra, river (Leningrad region) - 1909 - Photographs. 4. Color of negatives. 5. Glass negatives. 6. Photos are documentary.
BBK 26.89 (2Ros-4Len) я61 ББК 85.163 (2)
E-copy source: Library of Congress Original storage: Library of Congress; Prints and Photographs Division