If you mean the type - it's a Flak 18. it was first used significantly against armour at Arras in 1940, the picture you posted however is in NA probably at Halfaya Pass, june 1941 where it first started to become 'famous'
you got it with t-41 vegar. and i think yours is ; Obergruppenführer Artur Martin Phleps of the Prinz Eugen SS Freiwilligen-Gebirgs-Division