"The Kaiser Wilhelm Memorial Medal also known as the Centenary Medal (German: Kaiser-Wilhelm-Erinnerungsmedaille Zentenarmedaille) was established on March 22, 1897 by Wilhelm II on the occasion of the 100th Birthday of his grandfather, Emperor Wilhelm I.
The medal was awarded by Prussia to state and university officials, as well as all military officers, non-commissioned officers and enlisted personnel, which were actively serving in army, navy and Schutztruppe. Medals were also awarded to the surviving veterans of the First Schleswig War, Second Schleswig War, Austro-Prussian War, and the Franco-Prussian War." - (en.wikipedia.org 24.09.2020)
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