Which race used to be called the Massey Ferguson Gold Cup?

Which race used to be called the Massey Ferguson Gold Cup?  The race formerly known as the Massey Ferguson Gold Cup is a Grade Three handicap steeplechase run over 2 miles 4½ furlongs on the New Course at Cheltenham. Established in 1963, the race has had various sponsors, and various titles, since the agricultural machinery manufacturer relinquished sponsorship in 1980, but its positioning in the National Hunt calendar has led to it becoming known, commonly, as the December Gold Cup. The most recent sponsor is gourmet food supplier Caspian Caviar, such that, since 2014, the race has been run as the Caspian Caviar Gold Cup.

In the initial sponsorship period, notable winners of the Massey Ferguson Gold Cup included Flyingbolt, in 1965, and Pendil, in 1973. More recently, in 2006, Exotic Dancer won the Boylesports.com Gold Cup, as the race was known at the time, en route to finishing second to his ‘nemesis’ Kauto Star in the King George VI Chase at Kempton on Boxing Day.