Envelope. Letter. Sent via Air Mail from the USA to Denmark, 1940.

Envelope. Letter. Sent via Air Mail from USA to Denmark, 1940. Letter sent Miss H.L Boettger, 240 Prospect Avenue, Hackensack, New Jersey, USA to Misses Gudrun & Ingeborg Aarsleff, 83 Peter Bangsvej, Copenhagen, Denmark. Postmarked in Hackensack 28 Nov 1940 with 30 cents air mail stamp and label for Air Mail. Also stamp for Via Air Mail. On the back label and stamp from Oberkommando der Wehrmacht stating that the letter has been opened. Very interesting letter arrived in Denmark a few months after the German occupation of the country on April 9, 1940. Not further stamped.