Watch List notes:

GERMANY. Prussia. Wilhelm II, 1888-1918. 20 Mark 1915 A, Berlin. Obv. WILHELM II DEUTSCHER KAISER KÖNIG VON PREUSSEN. Bust right, in uniform. Rev. DEUTSCHES REICH / 20 MARK. Crowned eagle, coat of arms on its chest. KM 537; Fr. 3833. AU. 7.96 g. Nice AU cleaned
This is the last gold coin struck by the German Empire. With an original mintage of 1'268'055 examples, only a few coins were put into circulation due to World War I.