Antique threadwork linen hanky baby blue embroidery ll1338

The pattern of the threadwork on this hanky makes me think it is from the early years of the Art Deco era. Besides the threadwork, each corner has some very small embroidered baby blue flowers. The hem is also threadwork. The hanky is fine linen. The condition of this old hanky is really excellent. No breaks in the threadwork, or other damage. It is 10 inches square.