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Short information about the author:
Georgi Paskov (born in 1903 in Haskovo, Bulgaria - dies in 1975). In 1922 studies electric engineering in Berlin. Several years later in Bulgaria he founds a publishing house for photo cards and travels around the country. He works for a short period of time for National Geographic Magazine. After 1945 his publishing house is transformed into the national trust “Bulgarian photography” where Georgi Paskov is technical instructor. He brings in the methodology for extracting silver from photographic stuff.