▁The ▁D & K R ▁initially ▁introduced ▁four ▁types ▁of ▁four ▁whe e led ▁carri ages . ▁The ▁fully ▁en closed ▁pur ple ▁first ▁class ▁carriage ▁had ▁ 3 ▁compart ments , ▁each ▁with ▁two ▁rows ▁of ▁u ph ol ster ed ▁seats ▁se ating ▁three ▁ab re ast . ▁ ▁The ▁pale ▁yellow ▁covered ▁carri ages ▁also ▁had ▁u ph ol ster ed ▁seats ▁in ▁three ▁compart ments ▁but ▁at ▁four ▁ab re ast ▁for ▁a ▁total ▁of ▁ 2 4 ▁passengers . ▁ ▁The ▁green ▁second ▁class ▁open ▁class ▁carri ages ▁were ▁only ▁used ▁in ▁summer . ▁ ▁They ▁had ▁open ▁sides ▁and ▁a ▁roof ▁and ▁se ated ▁ 2 8 ▁in ▁seven ▁rows . ▁ ▁Blue ▁third ▁class ▁carri ages ▁were ▁understood ▁to ▁have ▁had ▁roof s ▁despite ▁the ▁dep ict ions ▁of ▁contemporary ▁illustr ations . ▁ ▁Cap acity ▁per ▁carriage ▁was ▁ 3 5 ▁in ▁seven ▁rows ▁of ▁five ▁ab re ast ▁on ▁board ed ▁seats ▁with ▁low ▁back rest s . ▁ ▁Typ ical ▁trains ▁consists ▁were ▁a ▁single ▁first ▁class ▁carriage , ▁two ▁to ▁four ▁second ▁class ▁and ▁three ▁third ▁class . ▁Many ▁carri ages ▁were ▁converted ▁to ▁ ▁gauge ▁in ▁the ▁mid ▁ 1 8 5 0 s . ▁ ▁Pres ervation ▁One ▁item ▁of ▁Dublin ▁and ▁King st own ▁stock ▁has ▁surv ived ▁into ▁pres ervation . ▁Open - s ided ▁second ▁No . ▁ 3 8 , ▁built ▁in ▁ 1 8 3 4 ▁of ▁ 4 ' ▁ 8 . 5 "