Silver Jubilee issue

In philately, a Silver Jubilee issue is an issue of postage stamps by the British Post Office and the Post Offices of Commonwealth countries and British dependancies to commemorate the monarch's twenty-fifth anniversary on the throne.

In the 20th century there were only two such events, that for George V in 1935 and for Elizabeth II in 1977. These stamps, which are often rather lavish in design in comparison with definitive issue stamps, have a potential for serious appreciation in value over time.