“The lack of rubber often prevented the use of the standard rubberized wheels, and many bare-metal wheels of various designs were used. This can be seen on photographs as a strange mix of wheels. … the introduction of a new, much better hexagonal turret, … , which was a great improvement over previous models. Notably, the big hatch was removed and replaced by separated hatches (dubbed “Mickey mouse” by the Germans, due to the way it looked from the front with the hatches open).” 
ICM 1/35 kit .