Photo by G. V. Trunov, Moscow, Russia, 1888 (based on authograph) 6.4 х 10.5 cm Authograph: “To my dear friend Jacobi from Tsoller. January 2, 1888” Matvey Yakovlevich TSOLLER was a mechanical engineer and Honorary Citizen in Russia. In the early 1900s until 1917, he owned a metal constructions plant in Moscow and several construction companies and was member of Polytech Society. TSOLLER, M. Y. (Цоллер М. Я.)