25pdr SP, tracked, Sexton

Today we bring you another tracked land vehicle. The 25pdr tracked Sexton was a self-propelled artillery vehicle from the World War 2 that was based on the Canadian built versions of the M3 Lee and M4 Sherman tanks, which were built in Canada under the name of Ram and Grizzly.
When the production of the Sherman expanded and the supply of tanks wasn't no more a problem, it was decided, in 1943 to switch the Canadian production lines to manufacture the Sexton in order to provide the British and Commonwealth forces with a mobile artillery based on the QF 25pdr howitzer.
It was used by the British and Canadian forces during the Second World War and with South Africa and the Polish Forces in the west. After the war, some Sextons, together with some Grizzlies, were sold to Portugal where they served until the 1980s.
There were three versions of them, Sexton I, which was based on the Ram tank hull and only 125 of them were produced, Sexton II, which was based on the chasis of the Grizzly (M4A1 Sherman) and added boxes to the rear deck in order to carry batteries and an auxiliary generator to charge them and, finally, the Sexton GPO (Gun Position Officer) which was an unarmed command version.

Sources:
1. https://en.wikipedia.org/wiki/Sexton_(artillery)
2. Salamander Books - The Illustrated Encyclopedia of the World's tanks and AFV