Trelon Weldon Weil was a French button-making company, founded on January 1, 1845, in Paris, under the July Monarchy. Specializing in the military button, she also made buttons for uniforms of administration, venery or fashion. In 1835, Nicolas TRELON and Louis LANGLOIS-SAUER founded Trelon and Langlois-Sauer. In 1841, TRELON and LANGLOIS-SAUER teamed up with Mr. WELDON. Henry-Marsch WELDON, Nicolas TRELON and Louis WEIL formed in 1845 the partnership Trelon, Weldon, Weil (TWW). During the Civil War, TWW provides federated and confederate troops with buttons. In 1865 TWW became Trelon-Weldon-Weil Hartog and Marchand (TWW HM). In 1904, Trelon became Coinderoux. The company Coinderoux is placed in judicial liquidation in 2007 while the brand is the subject of a deposit at the INPI. The company Janvier Gruson Prat makes subsistence of the brand Coinderoux and their heritage developed in the nineteenth century by TWW. In 1845, the factory and headquarters of the company were 33 rue de Chabrol in Paris and 13 bis rue de Laborde. The shop was located at 29 rue Grenéta. At the end of the 19th century, the company owned a factory at 246 Berry St. Antoine Street, a store at 14 bis Poissonnière Boulevard. In 1966, the company moved to Ivry-sur-Seine. Today, there is a factory in Savigny-le-Temple and a shop in the hotel Sabran, located at 17 rue Pastourelle in Paris.