World War I ribbon badge from Battery D of the 1st Minnesota Field Artillery recognizing the entry of the United States into the war. Black ribbon with hanging pendant. Obverse reads "Battery D 1st Minn F'fl Art.", reverse reads "American German War Mobilization of 1917". Marked by Lincoln Manufacturing Works of Boston, MA.
The 1st Minnesota Field Artillery was re-designated as the 151st Field Artillery at the start of World War I.