Actually, the regiment had to apply through the chain of command all the way to the war department, for approval to include battle honors on their flag.
The reason I asked the question, is because the 6th Alabama was heavily involved in most actions of the eastern theater. As such, their flag did have battle honors on it, but the picture shown did not. Was it a post-war replica of the basic battle flag? Or was it perhaps an early flag (1861) prior to the regiment seeing combat?