FamiliesISUИСУИСУOriginSoviet UnionTotal produced5,235NotesCast and welded nose together: ISU-152 2825 (250 post-war), ISU-122 1735 (about 300 in June–August 1945), ISU-122S 675.Production by year3519432,51019442,4401945Vehicles 2193719381939194019411942194319441945ISU (cast nose)≈ Mar 1944 – May 1945Jun 1944 – Oct 1944Aug 1945 – Aug 1945ISU (welded nose)