Case of the Council of Ministers at the request of the Organizing Committee on the organization of the flight St. Petersburg-Mos...

Case of the Council of Ministers at the request of the Organizing Committee on the Organization of the flight St. Petersburg-Moscow dated March 22, 1911. OBS holidays on the organization of the competition for airflows on the flight on the route Petersburg-Moscow: March 22 - April 23, 19111911.Resources collection