Deutsche Bundesbank was created in 1957.
Deutsche Bundesbank
Dieter Duwendag has written: 'Macht und Ohnmacht der Bundesbank' -- subject(s): Central Banks and banking, Deutsche Bundesbank
Heinz-Peter Spahn has written: 'Bundesbank und Wirtschaftskrise' -- subject(s): Business cycles, Business enterprises, Deutsche Bundesbank, Economic conditions, Finance, Monetary policy
Assuming it's a recent-date bill, it was worth about $25 at the time Germany switched to euros in 2002. If it's older than the 1980s please post a new question with the specific date. FWIW, "Deutsche Bundesbank" simply means "Federal Bank of Germany" so that's a given for any German bill dated 1950 or later.
Heiko Faber has written: 'Wirtschaftsplanung und Bundesbankautonomie' -- subject(s): Deutsche Bundesbank, Economic policy
Deutsche Mark bills and coins can no longer be used in ordinary commerce, but they can be exchanged for euros through the Bundesbank. As of 2016 the are no time limits or other restrictions on converting old D-Marks.
The Deutsche Bundesbank (Germany's central bank) allows DM to EUR exchanges for an indefinite period of time. The Currency Commission also will exchange deutsche marks (and other obsolete EU banknotes) through their website.
Deutsche Bundesbahn was created in 1949.
Deutsche Post was created in 1995.
Deutsche Kammerphilharmonie was created in 1980.
Deutsche Werft was created in 1918.
Deutsche Werke was created in 1925.