Kato N 1660300 - Budd RDC-4 painted, unlettered un#, as good as NEW, no original packaging RDC: Rail Diesel Car. As a "savior of the branch line", the Budd Passenger Car Company designed a "self-propelled passenger car" in the late 1940s. Hundreds of these vehicles replaced steam locomotives in passenger traffic on branch lines in the 1950s. Only with the end of passenger traffic in the USA in the early 1970s were these vehicles also decommissioned. However, many are still in use on heritage railways today. Model will be professionally packaged for shipping.