The German mark was the currency of the German Empire, which spanned from 1871 to 1918. The mark was paired with the minor unit of the pfennig; 100 pfennigs were equivalent to 1 mark. Wikipedia
Symbol: ℳ︁
Banknotes: 5, 10, 20, 50, 100, 1000 Mark
Central bank: Reichsbank
Coins: 1, 2, 5, 10, 20, 25 Pfennig; 1⁄2, 1, 2, 3, 5, 10, 20 Mark
Pfennig: ₰