Tanker's Tuesday: Tank, Cruiser, Comet I

The Tank, Cruiser, Comet I (A34) was a British cruiser tank that
first saw use near the end of World War II. It was designed to provide
greater anti-tank capability to Cromwell tank squadrons. It was armed
with the 77mm HV which was effective against late war German tanks
and a superior weapon to the 75mm gun of the Panther when firing
APDS rounds. As a development of the Cromwell, it was an interim
design before the Centurion tank.

The Comet saw post World War II combat during the Korean war, and
remained in British service until 1958. Comets sold to other countries
continued in some cases to operate into the 1980s.

http://en.wikipedia.org/wiki/Comet_tank