Vintage Kilometer Counter Miles Tankfix gauge

Vintage black Kilometer KM Miles Tankfix gauge in good condition. The miles gauge is new old stock but there is a small dent in the plastic at the bottom edge (see image 2 / 6 o'clock). It has 4 adjustable wheels, and the last digit is a zero and cannot be adjusted. The size is about 4 x 3,7 cm. You can mount it, on a metal dashboard, with the rear magnet. Alternatively, the thin metal plate with sticker comes between the plastic dash and the magnet of the miles counter. After the tank is filled with fuel, you just roll the wheels on the counter to match with the speedometer mileage. Made in Germany.