german 88-mm flak gun forces of valor unidentified unit

hallo all
the firm Forces of valor produces a die-cast model of the famous germann 88-mm flak gun
FOV calls the item german 88-mm gun Stalingrad 1942 unidentified unit
althought on the wheels carrier there are 2 mark tactical and divisional
the tactical mark consists of a large T in white with at the bottom a small yellow bar
the divisional mark is a shield with white contours yellow inside with a small oak or similar leaf in the left upper corner of the shield
near the shield on the outside there is another leaf in yellow possibly a fearn
can anybody identify the mistery unit ??!!
thanks for your replay
regards
stefano