We are a small museum and as we put up this flag we noticed some extra stars. What we know about this flag is that it was presented to James Madison Denison by Company B of the 20th Regiment Volunteer Infantry of the State of Iowa when he was presented from First Lieutenant to the Caption of the Regiments. He joined the Union army August 25th, 1862, and was discharged on July 6th, 1865. What we can't answer is why it has 46 stars. Any ideas? It looks like a battle flag? Any information would be helpful.