Tiger I nickname "Tiger" by Ferdinand Porsche, and the Roman numeral was added after the later Tiger II entered production. The initial designation was "Panzerkampfwagen VI Ausführung H" (‘‘"Panzer VI version H"’’, abbreviated "PzKpfw VI Ausf. H") where 'H' denoted Henschel as the designer/manufacturer. It was classified with ordnance inventory designation "SdKfz 182". The tank was later re-designated as "PzKpfw VI Ausf. E" in March 1943, with ordnance inventory designation "SdKfz 181". Today, only seven Tiger I tanks survive in museums and private collections worldwide. The Tiger 131 at the UK's Tank Museum, which was captured during the North Africa Campaign, is
3rd SS Panzer Division Totenkopf was then shifted north to take part in Operation Citadel, the offensive aimed at reducing the Kursk salient. It was during February 1943 that the 3rd SS Panzer Regiment received a company of Tiger I heavy tanks. The attack was launched on 5 July 1943 with the II SS Panzer Corps attacking the southern flank of the salient as the spearhead for Generaloberst Hermann Hoth's 4th Panzer Army. The division covered the advance on the left flank of the II SS Panzer Corps, with the SS Division Leibstandarte forming the spearhead. With the advance slower than had been planned, Hausser