Neubaufahrzeug:
There is already some info of this tank posted, It was a experimental projekt dated 1936 one was made by Rheinmetal Borsig and the other by Krupp.
Its armament was 2 x MG 34s plus a 75mm howitzer with a 37 mm pak in an over and under configuration. Coaxial gun was the magazine fed MG 13.
It armor was completely inadecuate, between 20 to 13mm. Is worth to mention that it was the only german multiturret design ever. Overall weight 23 tons.
The pair saw some action in Norway ( one damaged by british gunfire but repaired later) and Russia when the survivor was dully destroyed by Russian defences in the early stage of “Barbarossa”.