Bill,

Knowing that you have been on this list for a while, I am flummoxed by your PRR gondola comment, unless perhaps it was meant to be tongue-in-cheek?

PRR gondolas were common, nationwide. They don't even constitute an "oddity" for the SP. Now, I do note that your gondola has a load of hopper-bottom containers, which were typically used for mineral delivery. While less likely than the car to wander off-line, there would certainly be a rationale for those containers to be on SP, as they might be delivering particular mineral product in these containers.