ostmark
/ˈɑstmɑrk/
noun
- The former currency of East Germany (German Democratic Republic), used from 1948 until German reunification in 1990.
- The ostmark was officially called the 'Mark der DDR' and was not accepted in West Germany.
- After reunification, people exchanged their ostmarks for deutsche marks at a special rate.
- My grandfather still has a few ostmark coins from his time living in East Berlin.