In 1960/61, fifteen freight brakevans were built. They were coded C 1 - 15. As there were already _C__ class vans in service, the existing C vans in the number range 1 - 15 were re-numbered.
As the old C's were passenger vans and the new C's were freight ( or possibly unsuitable for passenger working ), the freight C vans were recoded to CA in 1961. Van numbers were retained.
Between 1983 and 1986 the CA van were reclassed to VVAP. As guards vans on freight trains were being phased out of service, not all vans were reclassed before removal from service.
In 1986, those vans coded VVAP were being withdrawn from service.
Several van bodies can be found in country areas