Last week I picked up a great PRR Alco PA ABBA set but with no boxes and no other info. I have identified the add-on B unit but the ABA I appears to be the 20-2477-1 set from BJ 2004 Volume 1. That set is a PS2/3V set with car numbers (5754A, 5755A and 5752B). What I acquired is 5753A, 5756A and 5752B. Is it a common occurrence to have slightly different A units than what is catalogued?
They are in great shape except for the roof antennae, which are in rough shape but need to be fixed. That'll be another thread.
I've attached some pictures.
Kirk