The USNX freight car roster of July 1950 is presented as follows:
USNX
Frt Car Roster
USNX Nbr | Length | Car Type | Capy (ft3) | built | bldr. | capy (tons) | Comments | 33-324-33-327 | 53'-6" | Flat | 19xx | 70 ton | 4 | 1001 | Tank, Comp. Gas | 19xx | 70 ton | 1 | 1002-1049 | Tank, Comp. Gas | 19xx | 100 ton | 48 | 1050 | 37'-0" | Box Car | 3450 ft3 | 19xx | 40 ton | 1 | 1051-1084 | Tank, Comp. Gas | 19xx | 100 ton | 34 | 1085-1086 | Tank, Comp. Gas | 19xx | 70 ton | 2 | 2001-2013 | Tank | 8000 gal | 19xx | 50 ton | 13 | 2016-2018 | Tank | 19xx | 50 ton | 3 | 3001-3169 | 50'-6" | Box Car | 4950 ft3 | 19xx | 50 ton | 164 | 3200-3202 | 41'-2" | Flat - HD DC | 19xx | 75 ton | 3 | 3300-3303 | 30'-5" | Open Hopper | 1683 ft3 | 19xx | 50 ton | 4 | 4000-5139 | 50'-6" | Box Car | 4671 ft3 | 19xx | 50 ton | 1139 | 6000-6199 | Tank | 10k gal | 19xx | 50 ton | Aviation Gas | 200 | 7500-7514 | Tank | 11k gal | 19xx | 70 ton | 15 | TOTAL= | 1706 |
The information for this roster was derived from the July 1950 issue of the Official Railway Equipment Register, the gracious files of Jim Eager and others.