The obverse bears a male astride winged horse, accompanied on sides by personifications of Justice and Peace. To left, JUSTICE with scales and wreath; to right, PEACE with (ANS seal); signed at lower right, (C B monogram)
The reverse shows a view of the Palace of Versailles where the World War I peace treaty was signed. Wreath around circumference. Above, PEACE OF VERSAILLES; on ribbon, 1919; below, THE AMERICAN NUMISMATIC SOCIETY
This medal was the 40th medal officially issued by the American Numismatic Society. It measures 63mm in diameter and was struck by the Medallic Art Company of New York. The reported mintage is 113 in silver and 318 in bronze.
Many thanks to Brian Holt for the images of the bronze medal.
References: ANS 40, Baxter 321, MACo 1919-010, Marqusee 49