Brand: H.C. Kurz
Made in: Germany
The natural finish pencils all appear to be WWII production. Often a zero was inserted in front of the original model number. So the 1685 became the 01685. This same model can be found painted with a 1685 model number.
Based in Germany, founded in 1882. The factory was destroyed during WWII, rebuilt and then later burned down in 1963.