All same size, all with the same commemorative cancellation
Translation: 'Our leader bans bolshevism'.
Braunau am Inn is located in Austria and is the birthplace of Hitler. The postmark date is Hitler's 54th birthday.
Each cover has duplicate, and are stamped:
Some stamps have glue smudges around them (see photos). One of the 24+76pf covers has creases in the envelope. Otherwise a few small smudges + creases here and there.