1950 vintage postcard. A view of the Mayo Clinic Building in Rochester, Minnesota, as seen by night. A revolving beacon to guide airplanes surmounts the tower of the Clinic building. A carillon dedicated to the American soldier is installed inside the tower. Twenty-three bells made in Croydon, England, weighing 36,935 lbs. each day ring out a message of goodwill and cheer to Rochester's visitors.