Vickers produced some 655 Archer SPGs from March 1943 to May 1945. They were basically an open-topped Valentine tank with a 17 pdr mounted, pointing to the rear.
Valentine Archer
Tank Destroyer
This British made Archer self propelled gun was employed by the Egyptian 6th Infantry Brigade which defended Abu-Ageila. The IDF captured it during the Sinai Campaign (1956). It is equipped with a 17 pound (76.2mm) gun.