This is a commemorative 3d postage stamp from Great Britain, issued in 1965 to mark the opening of the Post Office Tower during the reign of Queen Elizabeth II. The stamp features an image of the tower and a Georgian building and is multi-coloured. It is a used stamp, from the era of Elizabeth II in the 1960s.

The stamp has a denomination of 3d and was part of the Tower and Georgian Building issue. It is a piece of British postal history and a great addition to any stamp collection.