Original first pattern women's Deutscher Frauenarbeitsdienst service brooch. Worn until 1937 when it became the "Reichsarbeitsdienst der weiblichen Jugend" (National Labor Service for Female Youth) RADwJ and instituted a new rank brooch. This badge came in three ranks: Bronze: Arbeitsmaid, Silver: Maidenführerin and Gold Lagerführerin. I believe this one was originally silver.
It has some wear, but is in overall good condition. The silver finish has mostly worn off. A very nice looking piece with nice detail. The number on the back is 48076.