In bronze, obverse illustrating the right-facing bust of Emperor Napoleon Bonaparte, inscribed "NAPOLEON" at the left and "IMPERATOR REX." in Latin at the right, engraver marked "ANDRIEU F." (Jean-Bertrand Andrieu), reverse illustrating a nude male figure, his left arm raised, a horse standing on its hind legs behind him, surrounded by the Latin inscription "INJECIT TANDEM FRENA VAGANTI", inscribed in French "ERECTION DU ROYAUME DE WESTPHALIE MDCCCVII." (1807) below, engraver marked "BRENET F." (Nicolas Guy Antoine Brenet) and "DENON D." (Dominique-Vivant Denon), measuring 40.5 mm in diameter, edge nicks, spotting, light contact, very fine.