I think these are from the same book Pirate mentioned.
1st pic. Panzer IV and a Pak40 Geschutzwagen of the stug Battalion based on a Hotchkiss chassis.
21st1.jpg
pic 2. 10.5cm Field howitzer Geschutwagen based on a Hotchkiss.
Stug III.
Schwerer Ladungstrager remote controlled demolition layer.
21st2.jpg
The book lists the 22nd reg as having 4 Pz III, 117 Pz IV, 12 Flak Pz, 10 Stug, 2 Pz Bef.