Eiffel Tower be used to restrict the publication of tourist photographs of the tower at night, as well as hindering non-profit and semi-commercial publication of images of the illuminated tower. French doctrine and jurisprudence allows pictures incorporating a copyrighted work as long as their presence is incidental or accessory to the subject being represented, a reasoning akin to the "de minimis" rule. Therefore, SETE may be unable to claim copyright on photographs of Paris which happen to include the lit tower. The Eiffel Tower was the world's tallest structure when completed in 1889, a distinction it retained until 1929 when the Chrysler
Gustave Eiffel the Cantal département. Like the Douro bridge, the project involved a lengthy viaduct crossing the river valley as well as the river itself, and Eiffel was given the job without any process of competitive tendering due to his success with the bridge over the Douro. To assist him in the work he took on several people who were to play important roles in the design and construction of the Eiffel Tower, including Maurice Koechlin, a young graduate of the Zurich Polytechnikum, who was engaged to undertake calculations and make drawings, and Émile Nouguier, who had previously worked for Eiffel on