Pre-pros are usually very rare models made prior to start of prodction to check the correct fit of all parts or try different colour combinations with body & interior colours. Most of these pre-pro's do show a lot of differencies to the later production models. Because of the very low quantity these were made in they are all rare today. Pre-pros are one of my main fields of interest, 1-75 series Pre-pros, prototypes and colour trials. I'm always interested in buying such models, trades are welcome too! I do guarantee the authenticity of each and any model or box i sell, no fakes, repaints, replacement decals/labels/parts, customs or fotocopied boxes! All my offered prepros are genuine Lesney-made items!