RI 6900-6999
RI 6900-6999 (to ROCK 506900-506999)
These 50'-6", 50 ton box cars were built by PS (Lot 8541) in 5/1960 as PS-1's. They featured 15'-0" staggered double doors, welded sides, riveted terminating ends, Evans DF belt rails, Klasing hand brakes, plain bearing Ride Control trucks and 4822 ft3 capacity.