Navy Infantry Battalion Flag T-Shirt

The U.S. Navy Infantry Battalion flag, which for many decades served as the de facto flag of the U.S. Navy as a whole, until an official flag was defined in 1959. Today, it is used as an organizational color for a ship's landing battalion and similar units during ceremonies. The flag dates from sometime during the mid to late 1800s, but was not defined in Navy signal books until 1900 or so.