It was the cents of German currency before the euro. In use between 1948 and 2001.

Denis Apel, CC BY 2.5, via Wikimedia Commons
Denis Apel, CC BY 2.5, via Wikimedia Commons
Denis Apel, CC BY 2.5, via Wikimedia Commons
Denis Apel, CC BY 2.5, via Wikimedia Commons
Denis Apel, CC BY 2.5, via Wikimedia Commons