The FC Singen 04 is a German association football club from the city of Singen, Baden-Württemberg. Established 4 August 1904. the club merged with Fußball-Club Radolfzell in 1908 to form FC Radolfzell-SIngen. That union was ended on 10 March 1910 and in 1917 04 was joined by Sportclub Singen. Wikipedia