WW2 German SA Reserve Sturmabteilung Armband

An early and scarce WW2 German SA Reserve (Sturmabteilung) Armband, two-part construction, in red cotton, with silver tresses above and below.  The exterior bears a white machine-embroidered disc measuring 85 mm in diameter, overlaid by a machine-embroidered black mobile swastika, measuring 180 mm (l) x 105 mm (h).  The armband has no damage or repairs, in good condition.