@Strummer posted:
Here they are with the B unit...
I should add here that these particular examples have the 3rd(?) of 4 drive mechanism variations; they run VERY well and are both smooth and quiet. Here is a picture (I've shown this before) of one of the chassis:
I also have one with the "planetary gear" drive:
Because the frame on this one is plastic(!), those heavy gearboxes warped the frame, throwing the drive train slightly out of alignment, so it runs poorly. Have been trying to get it to run better, but we'll see...
Mark in Oregon
PS: Now that I think about it, these undecorated shells might actually be "New River"; Wabash Valley had nicely decorated shells.