It was called the European Champions' Championship and from 1986 was renamed the European Community Championship (ECC). Its nickname was the "Gold Racquet" tournament because if a player won the tournament thrice within a 5-year span, he would also receive a special trophy, a life-size, 13.2- pound gold racquet studded with 1,420 diamonds ...
https://en.wikipedia.org/wiki/ECC_Antwerp