This large (46mm x 66mm) cinderella of Germany publicizes the 900th anniversary celebration of the town of Amberg, in eastern Bavaria. A miner with pick and lantern is shown between old and new town views. The brown color may have been symbolically used to indicate a racist, or anti-semitic "new order."
The label is typical of many third reich stamps and cinderellas in that it employs a modernized Gothic blackletter font for the lettering, as well as strong side lighting for the subject. It is a little unusual that the eagle and swastika image is hidden behind the Amberg town name.
From Wikipedia, "Jews settled in Amberg before 1294, when the first documentation can be found. Nevertheless, in 1347, six families received permission to settle in Amberg and twenty years after, in 1367, a Yeshivah was opened in it, though the Jewish community was expelled from Amberg in 1403. Upon the expulsion, the synagogue was annexed to the nearby church. Twelve Jews remained in town in 1942."