Vintage 1940s Patch, 9th Service Command Blue Circle with White Sew On Army

Vintage Military patch in blue with white shape in the center. My research tells me this is the patch for the 9th Service Command of the United States Army, which was activated in 1920. This is not an iron on, its a sew on embroidered patch. About 2.25" in diameter. I have nine of these, listing is for one. Excellent vintage condition. Some mild foxing on some is about all worth noting. Please note: Many of my items are vintage, preused and preloved items. I will mention if an item is vintage, and if so will do my best to list any issues, but signs of wear should be expected in my vintage items and vintage items are considered final sales.