In the 80's my family lost a suitcase of family photos and letters. Literally fell of a truck in the middle of Siberia. a few year later they were reunited with them thanks to a stranger who found them and tracked my family down (obviously this was pre-internet). My family was very grateful.
Please submit this as a real letter to the editor to the Economist. They are quite likely to publish it (the last 1 or 2 letters are usually humorous).