Skink Anti-Aircraft Tank The Skink anti-aircraft tank was a Canadian self-propelled anti-aircraft gun, developed in 1943–44, for the First Canadian Army. The chassis was based on a Grizzly I cruiser tank (a Canadian manufactured M4A1 Sherman tank). The cast turret held four 20mm cannon. Initially these were 20mm Hispano-Suiza cannons, which were later replaced by… Read more