Women concentration camp KL Ravensbrück camp money token of 0,50 RM. Very rare!

Prämienschein Token of the value of RM 0,50. These were printed  premium glow over at the midle and value in the lower right corner RM 0,50. Below this, "concentration camp Ravensbrück " was no special space for the stamp validation but censor so interceded stamp " Frauen-Konzentratioslager Ravensbrück ". On the back there's an inscription "Arbeitsstelle" (work place) . Condition is not very good but this is very rare token and very very difficult to get!