Jagdpanther had a cannon that was previously used on the German heavy tank used during what event?
Tiger II Tiger II is the common name of a German heavy tank of the Second World War. The final official German designation was Panzerkampfwagen" Tiger "Ausf". B, often shortened to Tiger B. The ordnance inventory designation was "Sd.Kfz." 182. It is also known under the informal name Königstiger" (the German name for the Bengal tiger), often translated literally as Royal Tiger, or somewhat incorrectly as King Tiger by Allied soldiers, especially by American forces.
Paris Gun The Paris Gun (German: "Paris-Geschütz / Pariser Kanone" ) was the name given to a type of German long-range siege gun, several of which were used to bombard Paris during World War I. They were in service from March to August 1918. When the guns were first employed, Parisians believed they had been bombed by a high-altitude Zeppelin, as the sound of neither an aeroplane nor a gun could be heard. They were the largest pieces of artillery used during the war by barrel length, and are considered to be superguns.