The first ones to be withdrawn in 1968 were replaced by three ex GSR coaches becoming 2979,2980 and 2981 I suspect the interiors
re used in the bogie vans the withdrawn ones were then used as vans for a while .
Here's one as a van signs removed and letter box covered over .
KAM_CIE_2766_Dun_Laoghaire_28_May_1970 | [Photographer: Kevi… | Flickr
The others were used on Sligo and Wexford mails for a while into the early 1970s one became the foreman's office in Mullingar scrap yard .
SLR_CIE_X_Mullingar_23_Aug_1986 | [Photographer: Seamus Latt… | Flickr