Obverse: profile portrait of Georges-Louis Leclerc, Comte de Buffon; "G.ES L.S LECLERC COMTE DE BUFFON" around perimeter and "E. DUBOIS F." under profile. Reverse: "SOCIETE D'ANTHROPOLOGIE DE PARIS FONDEE PAR PAUL BROCA 1859-1959."

Obverse: BENJAMIN - FRANKLIN above bust of Franklin facing left with palm branches on either side; to right, 1706 / 1790. In exergue, (triangle) PRINTER (triangle) PHILOSOPHER (triangle) / (triangle) SCIENTIST (triangle) STATESMAN (triangle) / *DIPLOMATIST*. Reverse: HISTORY above a draped female figure seated at left, holding against her knee a shield bordered by olive wreath; she is inscribing on the shield ERIPUIT / COELO / FULMEN / SCEPTRUM / QUE TYR / ANNIS; a tripod alter is burning beside her, a branch of laurel on the steps leading to her throne, and fluted columns behind her; three figures, representing Science, Philosophy and Literature, stand before her; over the figures in three lines LITERATURE / SCIENCE PHILO- / -SOPHY; above in two lines STRUCK BY ACT OF THE CONGRESS / OF THE UNITED STATES; in exergue, TO COMMEMORATE THE TWO HUNDREDTH / ANNIVERSARY OF THE BIRTH OF / BENJAMIN FRANKLIN / M C M V I.