Ostbank für Handel und Gewerbe
The Ostbank für Handel und Gewerbe (lit. 'Eastern Bank for Trade and Industry'), known from its 1857 founding to 1898 as the Provinzial-Aktienbank des Großherzogtums Posen (lit. 'Provincial Joint-Stock Bank of the Grand Duchy of Posen') and later sometimes simply referred to as Ostbank (Polish: Bank Wschodni), was a prominent bank of issue (until 1891) and commercial bank in the eastern part of the German Empire.
Ostbank was disrupted during and after World War I, and eventually absorbed in 1929 by Dresdner Bank. During World War II, Dresdner Bank revived it for its predatory operations in occupied Poland.