Most of the differences between the E-44 and EL-C/E-33 can't be seen, e.g., motors, rectifiers, controls, etc. The most noticable external difference is the use of two single arm pantographs on the E-44, versus a single dual arm pantograph on the EL-C/E-33. Other than that there are only some minor cosmetic differences between the car bodies of the E-44 and the EL-C/E-33.
Len
Len