This coin is a perfect addition to any collection. With its unique design and historical significance, it is a must-have for any coin enthusiast. The denomination of this coin is 5 Mark and it was minted in 1990 in Germany. The coin features a design that highlights the Berlin Museum and its significance in German history. It was minted during the time of East Germany (1949-90) and is a valuable piece of history. Although it is uncertified, its authenticity can be confirmed by its country/region of manufacture, Germany. This coin is a great investment and a piece of history that will only increase in value over time.