Definition: Special Delivery stamps were used to expedite delivery of mail, normally at a higher cost. The exact nature of the service varied by postal service, but often included direct delivery to addressee upon arrival at the post office (instead of waiting for next regular delivery time). In many cases it would often be transported to the destination post office in a quicker manner.
<p>
Overall special delivery has been superseded by overnight mail and other express options. Special Delivery stamps are considered a Back of Book Stamp.

