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Iohann Al’bertovich Kvarnberg
General Information
Mechanic of the Main Chamber of weights and measures (in 1894–1937), employee D.I. Mendeleev, designer of a number of precision metrological instruments. He took part in an expedition for solar eclipse observation to Turkestan in winter of 1906–1907, along with Prokudin-Gorsky. Died after 1930.