The obverse bears line of steel-helmeted doughboys, rifles in hand, with bayonets fixed, about to go over the top. To right, FOR / HUMANITY / 1918.
The reverse bears imaginary portrait of Col. Ephraim Williams, founder of Williams College, on horseback, in the uniform of a Continental Army officer. Around top, E LIBERALITATE E WILLIAMS ARMIGERI 1793; at bottom, THE WILLIAMS MEDAL;
Edge engraved to GOODRICH C. SCHAUFFLER PRIV.
The official description for the medal's reverse is actually a bit incorrect. The medal depicts Williams at Lake George in 1755, so he is in the uniform of a French and Indian War officer, not a Continental officer.
This medal measures 73mm in diameter and was struck in bronze. The college awarded a total of 1726 pieces to Williams men who served in World War I.
References: Baxter 320, MACo 1918-004, Marqusee 165