I added this Texas Flag postcard to my collection. It was a purchase. The postcard is a John Hinde Curteich postcard distributed by A-W Distributors and Importers of Irving, Texas. Photo by T.D.O.T. The following description is on the back:

Texas is known as the Lone Star State, from the single star upon the red, white, and blue banner which waved over the Texas Republic and is still the state flag.