Original slogan on the poster. INCREASE THE RANKS OF SPORT-MODERNISTS OF DOSAAF! , full name Volunteer Society for Cooperation with the Army, Aviation, and Navy Russian:????????????
, was a paramilitary sport organisation in the Soviet Union, concerned mainly with weapons, automobiles and aviation. The society was established in 1927 as OSOAVIAKhIM and from 1951 to 1991 carried the name of DOSAAF. IN: 22 x 32 = CM: 55 x 82.