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
SS Brigade Westfalen consisted of three battalions: SS Panzer Reconnaissance Training and Replacement Battalion 1, SS Panzer Reconnaissance Training and Replacement Battalion 2, and an SS Panzer Reconnaissance NCO Training Battalion. Regiment "Holzer" was named after its commander Obersturmbannführer Friedrich Holzer and consisted of the SS Panzer Training and Replacement Regiment in Augustdorf, which consists of three battalions. The 507th Heavy Panzer Battalion was the brigade's main armor component. The brigade had about 60 Tiger and Panther tanks as of 30 March 1945 according to Charles B. MacDonald. However, according to Steven Zaloga, the brigade instead had 15 old training tanks such as