RP Cyc #27.
The version we are offering is on a "Murphy" style roof.
Over 950 were built for 13 different railroads. Some had the open side configuration and some the closed side option.
The roads using this car were, ATSF, CIL, D&RGW, DMIR, DPCX, EJ&E, GN, I-GN, LS&BC, M-I, M-K-T, MP.
And it appears the CB&Q built a version in their shops which was very similar to this car.