Decorative and largely map of Germany witht he kingdom of Prussia, deteiled representation of rivers, mountains and cities. A decorative allegorical cartouche showing the German coat of arms, a black eagle with red feet, beak and tongue on a golden field.The German Empire of 1871–1918 had re-introduced the medieval coat of arms of the Holy Roman Emperors, in use during the 13th and 14th centuries (a black single-headed eagle on a golden background), before the emperors adopted the double-headed eagle, beginning with Sigismund of Luxemburg in 1433. The single-headed Prussian Eagle (on a white background, Argent, an eagle displayed sable) was used as an escutcheon to represent the Prussian Kings as dynasts of the German Empire.