Boy "Posted" Himself In the Mail Box was a "Prisoner" for an Hour David - as he appeared to his mother through the slot. Four-Year-Old David Lees, of bell-street, Ebgware-road, London, is a boy, who accompanied to his mother "Gets into Everything". Yesterday his inquisitiveness got him into trouble, seeing that the door of a mail box into which letters are posted had been left open he "Just had to step inside". His sister, Linda, pushed the door and - click - David was locked in. A post office official arrived with a key but it was the wrong one. May 14, 1951. (Photo by Paul Popper).