....MTH baggage cars have the PRR porthole window in the doors. I really like the tooling of the MTH RPO though. A really nicely detailed car. I've never checked its accuracy against any prototype, but I just find them to be very high quality.
I agree. MTH and Williams baggage cars with the porthole windows are nearly identical, probably from the same mold. They are an accurate, but a little short, PRR B70. The issue for me with the K-line/Lionel PRR baggage car is the incorrect windows in the doors.
Here is the MTH lined up with a GGD B70 and you can see the MTH is a bit short of scale. In a train, even next to each other, you can't tell the difference (except color).
![DSC_0150 DSC_0150](https://ogrforum.ogaugerr.com/fileSendAction/fcType/0/fcOid/177117009274314981/filePointer/177117009276120531/fodoid/177117009276120527/imageType/MEDIUM/inlineImage/true/DSC_0150.JPG)
MTH put both porthole and slotted windows in the doors of their baggage and RPO cars. However, MTH copied the car body of the PRR B70 so, depending on what you want, it may not be correct for another road.