New Photo Studio, St. Petersburg, Russia, 1901 6.2 х 10.3 Andrei Pavlovich Sinitsyn (1857–1925) had a dental practice on 79 Nevskii Prospect in St. Petersburg, Russia. He founded and for many years edited The Dental Courrier ("Zubovrachebnii vestnik") вестника (1885–1905), which promoted dental education in Russia. SINITSYN, A. P.