Hi, I'm new to the forum. I have an American flag that has been in my family since at least 1900. I don't have photos but I will describe it as best I can. Size is about 4' x 3' and it is made of what looks to me like linen. It is machine sewn, straight stitch on the stripes and zigzag on the stars. There are 13 stars in a 3-2-3-2-3 pattern. Any ideas on it's purpose or when it was made? Why a 13 star flag in the latter half of the 1800's? Maybe a Centennial celebration flag? Any info is welcome. Thanks!