SU-152
The SU-152 (Russian: самоходная установка-152, СУ-152, romanized: Samokhodnaya Ustanovka-152) is a Soviet self-propelled heavy howitzer used during World War II. It mounted a 152 mm gun-howitzer on the chassis of a KV-1S heavy tank. Later production used an IS tank chassis and was re-designated ISU-152.