KL Dachau prisoner envelope . Letter sent by Polish prisoner to a woman in Litzmannstadt probably mother . Inside this letter we found letter but we are not sure if this connected because its not regular type of letter. Letter is written in German. Envelope it was sent by prisoner number 11939. I still has the post stamp and also the censorship ink stamp. Condition is excellent and it is a great example of KL Dachau correspondence for any collector. Unfortunate we dont find any more info about this prisoner .