Crowned conjoined busts King William I and Queen Augusta, facing to the right, surrounded by the inscription "William King Queen Augusta of Prussia".

William I, or in German Wilhelm I (full name: William Frederick Louis of Hohenzollern, 1797–1888), of the House of Hohenzollern, was King of Prussia from 2 January 1861 and the first German Emperor from 18 January 1871 to his death, the first head of state of a united Germany. Under the leadership of William and his Minister President Otto von Bismarck, Prussia achieved the unification of Germany and the establishment of the German Empire. Despite his long support of Bismarck as Minister President, William held strong reservations about some of Bismarck's more reactionary policies, including his anti-Catholicism and tough handling of subordinates. In contrast to the domineering Bismarck, William was described as polite, gentlemanly and, while a staunch conservative, more open to certain classical liberal ideas than his grandson Wilhelm II.

Princess Augusta of Saxe-Weimar-Eisenach (Augusta Marie Luise Katharina; 1811–1890) was the Queen of Prussia and the first German Empress as the consort of William I, German Emperor.

Coat of arms of the Kingdom of Prussia at center of crowned monograms of the Royal Couple WRA surrounded by the inscriptions, value and date.

The coat of arms depicts royally crowned Prussian Eagle a scepter and orb. Letters 'FR' (Fridericus Rex, "King Frederick") on its breast.

"Suum cuique" is a Latin phrase often translated as "to each his own" or "may all get their due". It serves as the motto of the Order of the Black Eagle (German: Hoher Orden vom Schwarzen Adler; founded in 1701), the highest order of chivalry of the Kingdom of Prussia.

Gott mit uns ("God with us") is a phrase commonly used on armour in the German military from the German Empire to the end of the Third Reich, although its historical origins are far older. It was used for the first time in German by the Teutonic Order.