Overall: 2 11/16 in. ( 6.8 cm )
Bronze struck medal with obverse showing three accolated busts of the French army generals facing right, flanked by laurel branches; legend above: "BATAILLE DE LA MARNE"; inscription in exergue: "SEPTEMBRE/1914." Reverse shows aerial view of the battlefield with soldiers at left firing a cannon; female allegorical figure of Liberty with a sword is flying overhead.
Inscription: bverse, at lower right, below exergual line: "J. P. LEGASTELOIS"
Inscription: reverse, at lower center of field: "J. P. LEGASTELOIS"
Inscription: edge, lower center: "BRONZE"
Due to ongoing research, information about this object is subject to change.