Nice work, Fenton. Just to add to your collection, here is a photo I made of the very similar ACL class O-17 ventilated boxcar 18440 in service at the Wilmington NC freight station (now the Wilmington RR Museum) in July 1962. It was one of the first freight car photos I made. It shows the circa 1950 freight car lettering and the use of the Prismo stripes at the bottom of the car sides.