The medal's obverse bears male and female nudes symbolizing the union of the Western hemisphere by the Panama Canal; in background, sun and clouds above horizon with American isthmus. At bottom, DIVINE DISIVNCTA IVNXIT HOMO

The medal's reverse shows the Panama Pacific International Exposition's Tower of Jewels. On panel below building, MEDAL / OF AWARD; around, PANAMA PACIFIC INTERNATIONAL EXPOSITION SAN FRANCISCO - MCMXV

The medal measures 70.3mm in diameter and was struck in bronze by the United States Mint. Plain bronze, silver-plated, and gold-plated versions are known to exist.

References:   Baxter 114, MACo 1915-020, Marqusee 150,151,152