Fyodor Ivanovich Blumbach

Professor, notable specialist in astronomy and measurement of length and time, associate of D.I. Mendeleev. He took part in an expedition for solar eclipse observation in January 1907, along with Prokudin-Gorsky. He also wrote a feature article about the expedition later. As a fellow chairman of board of High Institute of Photography and photographic equipment, Blumbach signed travel certificate for Prokudin-Gorsky’s departure abroad on 1st of August 1918.