Lot of 5 early Soviet Aviation Badges: • Member's Badge of the Society of Friends of the Airforce (ODVF), Northwest Region. Biplane atop hammer and sickle, red enamel star with "1923" above, legend on blue enamel banner above; • Pilot Instructor – Red Army Airforce. Triangular badge with pale blue and white enamel, wings with propeller superimposed. "250" inked on back; • Badge of Final Year Student of the 10th Military School of Pilots and Air-Observers