Interesting WWII German Heated Windshield for Vehicle-This is a mystery to us so we are hoping someone could shed some light on it. It is an electrically heated window meant to screw onto a bracket of some sort. The exterior has a tan finish. The switch to turn it on and off is seen on the exterior. It is marked "Nirona" and with what could be an ordnance code, "eks". Volkswagenwerke is "eky". The glass is original and marked "Thorax". It measures just over 17 1/4" in overall length and 6 7/8" tall, not including the brackets. Very intriguing and fully intact, we would love to hear from the vehicle experts!