B-50-54 Box Cars
A roster of the B-50-54 class box cars is provided as follows:
SP 660000-660049 (re #'d SP 660050-660055 w/ pallets & bulkheads)
These 50' box cars were all built to the same basic design by PC&F in 1961 and featured 4982 ft3 capacity, combination Camel sliding-plug doors, 12-in. Hydra-Cushion underframe and Universal hand brakes. Thanks to Tony Thompson for the answer and Bob Alessi for asking the question. The 6 cars listed as re-numbered were taken from the original 50 car lot in mid 1963 and apparently outfitted with internal loading restraint equipment.
From January 1965 ORER, note #91:"Cars in series 660050-660055, 697700-697899 are equipped with fork lift truck pallets, platforms or skids, which will be considered part of the car."