Commemorative coin of one of the smallest states in the world - the island country of Niue 50 dollars 1989 "Davis Cup" as a Proof mintage. Dedicated to the memorable final match of the 78th Davis Cup, which took place in Schleyer-Halle (Stuttgart) from December 15 to 17, 1989. The West German national team defeated Sweden with a score of 3:2 and won its second consecutive Davis Cup title.