The E3 set was modeled as built with one exception. The pilot steps were added so soon after delivery that it made sense
to include them. The E3A was delivered with the ATS shoe on the right side of the rear truck that allowed speeds over 79 mph.
That same shoe appeared on the E6 as well. The speed recorder cable on the right front truck sideframe was a bit unusual in
that it curled up to a junction box on the sideframe instead of up to the underside of the body. Presumably, an unseen cable
carried the signals into the body from a point inside the truck. That was later changed to a more normal arrangement.
detailing item a lot of people miss on the E3 is the louvers over the radiators on the roof. Note that they run side-to-side
on the E3 instead of front-to-back as on E6s and E7s. This changes the look of the roof quite a bit, so it is not true to
say that the E3 and E6 are essentially identical. In addition to that, the E3 had silver skirts, side doors, and intake opening
trim. On the E6, all those were stainless steel. By the late '40s, the E3 had gotten the same boxy arrangement of coupler
doors as on the E1. The E6s never got those because they had an extending buffer in the center of the anticlimber that would
have interfered with that box. So that is another spotting item. The E3 has no buffer in the center of the anticlimber.