The Federal Republic of Germany issued two circulating 2 DM coins in 1969 which commemorated the 20th anniversary of the country's existence or independence. Below is the one that shows the first chancellor Konrad Adenauer; the other one shows the first president Theodor Heuss.
Similar 2 DM coins are about the 30th (Kurt Schumacher), 40th (Franz Josef Strauß) and 45th (Willy Brandt) anniversary of the country. The silver coins (5 DM - 25 yrs 1974, 10 DM - 50 yrs 1999) focus on the constitution instead.
Christian