This presentation provides a short introduction to the fascinating history of the US Dead Letter Office and some of its philatelic collectibles. The presentation is in streaming video format, is 13 minutes long, and is approximately 350MB in size. Note: it may take a few seconds to buffer the video before it starts playing.
Click the arrow control (lower left) to start the presentation.
You can also view this in 'full screen' by clicking the in lower right.