International Union of Railways --- The International Union of Railways, otherwise known as UIC was founded in 1922. Its objective is to standardize and improve on the railways with special regard to International traffic. The UIC is also responsible for ensuring co-ordination and unity of action amongst the International Railway Organization. The Indian Railway has been associated with the International Union of Railways since 1957. The Union celebrated its golden jubilee in 1972. Of all the members of the UIC, the Indian railways have the largest route length. The Indian Posts and Telegraphs department issued a commemorative stamp to mark the Golden Jubilee of the International Union of Railways on 30th June 1972 with denomination 20np. The stamp design is based on artwork by the well-known French artist George Mathieu.