I checked the catalog, they are both PS3.
The Western Maryland steamer is 20-3551.
The Pennsylvania BB1 is 20-5679.
Both ID appeared normal in the handheld and each had a separate location Assignment.
If memory serves me right, the WM is in location 2, the BB1 in location 4.
I will not be back home until Labor day weekend, so additional details will be hard to provide until then.