This very nice registered cover from Hong Kong was sent by Wolfgang, thank you very much! It was posted on March 4 and arrived on March 11, 2016.
The stamps on the right commemorate the 100th anniversary of the Hong Kong Girl Guides Association.
I am Florian, a 36-year-old cover collector from Austria. I am trying to receive at least one cover from every country of the world. If your country is on the list of missing countries, please send me a cover, I am replying with a nice-stamped one from Austria!