Definately looks like a Div unit tac sign but i'm not sure which one !!
The unit tac sign is for Anti Tank units ( motorised ) !!
The lower one , triangle shape on wheels !!
The lower one is the tactical sign for anti-tank while the larger divisional sign is for 100 Jäger-Division...
100. Jäger-Division - Axis History
Judging by the tan on the soldier I'd say that this was taken during the Fall Blau/Braunschweig summer offensive and the push to Stalingrad.
Thank you a lot for this, both of you. Really nice to know info like this