Johan,
These cards weren't used as permits, but as a way of accommodating collectors.
For many years, there was a collector's window at the Berlin post office. This ensured that stocks were always available for collectors to purchase, either in person or via the mail upon request. The collectors window closed in January 1943, however.
After its closure, the post office began issuing these cards to collectors. For a cost of 1 RM, a collector could purchase a card. For every card issued, the post office would set aside a certain quantity of stamps as they were issued. The cardholder then had a certain period of time (in this case, 2 weeks) after the first date of issue to present their card and purchase their stamps. The card was stamped on the reverse to indicate the dates stamps were purchased.
For our non-German speakers, the text translates roughly as follows:
Quote:
Special requests cannot be accommodated.
New issues will be handed over only upon presentation of this card. They are to be collected within 2 weeks from the first issue date, otherwise there is no entitlement the stamps. Delivery of the stamps is indicated by date stamp on the back.
The allocation can be restricted for smaller runs of stamps.
After the 20th set of stamps is claimed, the application can be renewed for payment of a fee of 1 RM.
In the case of loss or misuse of the card, no replacement will be made.
A few of the dates are hard to make out, but my best guess is your card was used to purchase the following:
MiNr 864 -- Dr. Robert Koch (issued 25 Jan 44)
MiNr 865 -- 11th Anniversary of Hitler's Rise to Power (29 Jan 44)
MiNr 869-872 -- 10 years of the "Mutter und Kind: Charity Program (2 Mar 44)
MiNr 887 -- Hitler's 55th Birthday (14 Apr 44)
MiNr 894-895 -- Reichsarbeitsdienstes (RAD) Show (June 44)
MiNr 900-901 -- Grand Prize of Vienna Horserace (Aug 44)