The Browns alternate logos are very nice for alternate logos from the 1900s to the 1950s. The Fleur de Lis logo traditionally, it has been used to represent French royalty, and in that sense, it is said to signify perfection, light, and life.
1945 - 1953
Orange Fluer de Lis outlined in brown.
1909 - 1910
A brown wordmark “STL” inside a brown and white diamond. The letters “STL” stand for the city of St. Louis.