It is fascinating to see how Finnbadger manages to send mail from... er, as many countries as the United Nations do count!
The stamps show three of the 17 Sustainable Development Goals, the successor of the eight Millenium Goals (which alas haven't been accomplished in 2015).
Inside the envelope, besides a kind message from the sender, a vintage written back of a postcard, and this wonderful mailbox collage by Craftgasm.
Thank you very much, Finnbadger!
