ISU-152 Tank Destroyer (Soviet Union)
Russian ISU-152 tank (1945) - Russian soldier polishing his boots with the Nazi flag.
History of Tanks: ISU-152 - http://www.warhistoryonline.com/war-articles/history-tanks-isu-152.html
ISU High Power Gun Projects - Prototype Object 2 47/ISU-152-2
Nazis tank Pantera vs. Russian SU-152. Armorama :: Birth of a Champion - Bronco SU-152. 1200km
ISU-152 With Massive 152.4 mm Howitzer
WATCH: ISU-152 With Massive 152.4 mm Howitzer - https://www.warhistoryonline.com/whotube-2/watch-isu-152-with-massive-152-4-mm-howitzer.html
An abandoned SU-152 assault gun inspected by German troops.
SU-152 crossing a river
Here is a picture of the effects of a 152mm HE round against a panther turret
ISU-152-1 (ISU-152 BM) armed in 152,4 mm gun BŁ-8/OBM-43. Only one prototype was built in factory nr 100 in Chelyabinsk
Abandoned ISU-152 during the Hungarian Revolution of 1956 
Effect of the 152 mm ML-20 howitzer on German Panther, Ferdinand, and Tiger II tanks.
A destroyed Russian ISU-152 tank. With its 152mm gun it was nicknamed the "animal hunter" due to its ability to kill a German "Tiger" or "Panther" in a single shot!!
Archive Awareness : SU/ISU-152 vs the German Big Cats
ISU-152-1 with 152,4 mm BL-8 gun