This medal's obverse bears a male figure with wings affixed to his outstretched arms, four different methods of manned flight in background: a hot air balloon, a dirigible, and two early-model airplanes.
The reverse bears bird in flight. Across center, PROGRESS / IN / AVIATION / CHICAGO NUMISMATIC SOCIETY / MEDALLIC SERIES / MCMX
The second art medal issued by the Chicago Numismatic Society (the precursor to the Chicago Coin Club) was dedicated to Aviation. In the early 20th century Chicago was one of the hotbeds of aviation engineering. Thus it came as no big surprise that it was decided to pick Progress in Aviation as the theme for an art medal. Carl Schrieber won the competition for the design of this medal.
The circular medal measures 51mm in diameter and was struck in bronze by Whitehead & Hoag of Newark, New Jersey. The reported mintage in bronze is 200 pieces. The silver pieces were struck later, possibly by the U.S. Mint. No mintage is reported.