No there is nothing on the medal aswell as the outside and inside of the pin.
Searching for anything relating to, Anton Boos, 934 Stamm. Kp. Pz. Erz. Abt. 7, 3 Kompanie, Panzer-Regiment 2, 16th Panzer-Division (My father)
the pebbling, wreath and pin, I would say Carl Poellath. But wait for the experts on this area !