Prussian medal for 12 years of service in the army

Heavy metal, silver. On the original tape. In the center of the obverse image of the Prussian Royal crown, the inscription around the circumference in German Gothic script "Treue Dienste bei der Fahne" ( "For loyal service under the banner of"). A diameter of 30 mm. On the reverse the image of the Roman numeral XII (12 years service). A ribbon of moire blue. The medal was instituted on 4 July 1913 (originally in 1825). Awarded to military personnel of the Prussian army for 12 years of military service.