The USNX freight car roster of January 1959 is presented as follows:
USNX
Frt Car Roster
USNX Nbr | Length | Car Type | Capy (ft3) | built | bldr. | capy (tons) | Comments | 1000-1002 | Hopper | 2205 ft3 | 19xx | 55 ton | 3 | 1050-1051 | 37'-0" | Covered Hopper | 1973 ft3 | 19xx | 70 ton | 2 | 2001-2013 | Tank | 8/11k gal | 19xx | 50 ton | 13 | 6000-6199 | Tank | 10k gal | 19xx | 50 ton | Aviation Gas | 200 | 6500-6501 | Tank | 10k gal | 19xx | 50 ton | Petroleum | 2 | 7500-7514 | Tank | 11k gal | 19xx | 70 ton | Propane | 15 | 7600-7601 | Tank | 8k gal | 19xx | 50 ton | Petroleum | 2 | 8000-8879 | 50'-6" | Box Car | 4671 ft3 | 19xx | 50 ton | 879 | 9000 | 40'-0" | Box Car | 3855 ft3 | 19xx | 50 ton | 1 | 10000-10003 | 38'-0" | Flat - Well Hole | 19xx | 70 ton | 4 | 10500-10502 | 41'-0" | Flat - HD DC | 19xx | 75 ton | 3 | 11000-11044 | 31'-3" | Box | 2234 ft3 | 19xx | 50 ton | 35 | " " " " | 47'-3" | Box | 4709 ft3 | 19xx | 50 ton | 35 | 12000-12001 | 42'-6" | Flat | 19xx | 70 ton | 2 | 12002 | 40'-0" | Flat | 19xx | 70 ton | 1 | 12003-12007 | 41'-3" | Flat | 19xx | 70 ton | 5 | 13000-13001 | 40'-0" | Flat | 19xx | 50 ton | 2 | 14000 | 53'-6" | Flat | 19xx | 50 ton | 1 | 16600-16605 | 46'-10" | Gondola, Containers | 19xx | 70 ton | 6 | TOTAL= | 1186 |
The information for this roster was derived from the January 1959 issue of the Official Railway Equipment Register, the gracious files of Jim Eager and others.