PSPX 3501-3540
PSPX 3501-3540 (to JHMX in 1986; then to ECQX)
These cars were built by GATC in 4-5/1959 and featured 3500 ft3 capacity. They went to JM Huber (JMHX) with their same numbers in 1986 when Phillips divested itself of its carbon hopper fleet. They later ended up with Engineered Carbons (ECQX.)