I recently purchased two 1939 dated envelopes and I am trying to find out more about the stamps affixed,
The first envelope with the Hindenburg stamps is dated 13.3.39, the 2 red stamps are 12pfg and the blue is 20pfg
The second envelope is dated 19.6.39, and has a red 12pfg and a blue 20pfg stamp. Swastika removed to list on ebay.
I was wondering if there was a reason for the change to the dienstmarke/swastika stamp and if so when did this change take place exactly.
I am a novice in this field, any help is appreciated!