We offer set of very rare 2 items letter from KL Auschwitz subcamp of Auschwitz - Auschwitz III - Monowitz - Letter from Reichsbahn about this prisoner  and also - Postcard from KL KL Mittelbau-Dora (Sangerhausen )

All perfect condition

More about KL Mittelbau-Dora:

https://en.wikipedia.org/wiki/Mittelbau-Dora_concentration_camp

also about KL Auschwitz Monowitz :

https://en.wikipedia.org/wiki/Monowitz_concentration_camp