The Great Bell and the quarter bells

Weight: 13.7 tonnes
Height: 2.2m
Diameter: 2.7m
Musical note when struck: E
Hammer weight: 200kg

First quarter bell weight: 1.1 tonnes
First quarter bell diameter: 1.1m
Musical note when struck: G sharp

Second quarter bell weight: 1.3 tonnes
Second quarter bell diameter: 1.2m
Musical note when struck: F sharp

Third quarter bell weight: 1.7 tonnes
Third quarter bell diameter: 1.4m
Musical note when struck: E

Fourth quarter bell weight: 4 tonnes
Fourth quarter bell diameter: 1.8m
Musical note when struck: B

The bells are fixed and struck by hammers from outside rather than swinging and being struck from inside by clappers.