According to Alexander Projdakov, director and owner of the Moscow company "S.O.Marzhetsky" was Stephan Osipovich Marzhetsky, who founded his firm in 1897. From 1897 to1903 he recorded on brown phonograph cylinders, and since 1904 he became one of trading agents of Brothers Pathe Company.
International-Phonographenwerke was a very short-lived (1901-1902) cylinder manufacturer in Berlin Germany. Their brown wax cylinders have no order number.
--Dr. Rainer E. Lotz