This circular wool felt patch features a spoke wheel design appliqued at center, hand-embroidered in yellow chainstitch around the border and wheel details. The spoke wheel insignia identified soldiers serving in the Army's wagon and transport units during World War I, a period when the US military still relied heavily on horse-drawn transport alongside early motorized vehicles. During WWI, the Army's Quartermaster Corps oversaw wagoneer personnel who kept supply lines moving under field conditions. The yellow thread border stitching runs along the outer edge and shows some fraying consistent with age and field use, but the central wheel motif stays crisp and intact. The patch measures approximately 2.5 inches in diameter based on the ruler visible in the image. No significant fading, staining, or structural loss. A scarce branch insignia that the average militaria collector rarely encounters in this condition.