The P's were built from scrapped U and I/IA underframes for the carriage of explosive materials. There main traffic was from the ICI plant at Ardeer. When loaded, departmental regulations required "safety" wagons coupled between the loaded P's. A total of 51 were contructed for the class between 1953-1959. Photo courtesy of Rob O'Regan
3D printed body, under frame plus Micro-trains, Tangent Scale Models or Fox Valley wheels - couplers extra