Midland, AQCY 30239 container flat waggon built by Westrail Midland Workshops in 1974 part of a batch of forty five WFX type container flat waggons, in 1979 recoded to WQCX with two 30' CSBP tanktainers CPVU 010101 and CPVU 010099 for liquefied ammonia anhydrous.