Vintage Luncheon Set, Cloth and 5 Napkins

Vintage mid century luncheon set. Is it cotton? Linen? A cotton/linen blend? I'm not sure, but it's sturdy and made of natural fibers. Tablecloth measures 42"x40" and each napkin measures 13"x13." One napkin has a yellow spot and cloth has two that I've found (see photos). May soak out; I haven't tried. There are two appliques (see photo for view from front and back). I can't tell whether they're unfinished, faded, or originally white, but each has lifted in spots, easily resewn or removed.