APCM (Associated Portland Cement Manufacturer) operated a fleet of some 228 Presflos of the design introduced by BR built by Butterley and Metro Cammell. Originally painted yellow with very large name boards these photographs illustrate the final decade of their lives after the boards were removed. These wagons are well known to modellers because of the Airfix/Dapol 4mm kit. Similar wagons owned by Tunnel Cement.