1943 (21 Apr) Third Reich, Germany, Censored Cover of an Early Prisoner from Ravensbrück Woman Concentration Camp to Krakow, Censorship Postmark, More Details in Description

An official mail envelope from the Ravensbrück women's concentration camp (21 Apr 1943) to Kraków, which was part of the Nazi-occupied General Government
The sender was Zofia Ormańczyk, registered with prisoner number 6645, located in Block 14.
The text on the left outlines the strict restrictions enforced on inmates:
Only one letter or postcard per month was permitted. Restricted to a maximum of two pages, with exactly 15 lines per page.Must be written clearly in ink using unlined envelopes. Enclosing cash, photographs, or images was strictly forbidden.

The Cover ffeatures the official "Postzensurstelle F. K. L. Ravensbrück" stamp, indicating the letter passed through strict camp censorship.

The prisoner No. number belongs to Zofia Ormańczyk, a Polish prisoner.
Because Ravensbrück opened in May 1939 and issued numbers chronologically, a low four-digit number like 6645 indicates she was deported to the camp at a very early stage of the war, likely around the late summer or autumn of 1941.
Polish women constituted the largest national group in Ravensbrück. Most were arrested by the Gestapo as political prisoners, resistance members, or during mass retaliatory roundups in occupied Poland.

Provenance: Ex Werbizky.