LONDON.- Visitors to Windsor Castle, the Palace of Holyroodhouse and to the Summer Opening of Buckingham Palace can enjoy special photographic displays marking the reign of Her Majesty Queen Elizabeth II as the longest of any British monarch. The displays are being shown in the inner Quadrangle of the official residences – areas of Buckingham Palace and Windsor Castle that are not normally included in the visitor route.

Each of the outdoor displays, 'Long To Reign Over Us', celebrates The Queen through a selection of photographs from 1952 to the present day. The images include official portraits and photographs of Her Majesty undertaking visits in the UK and across the Commonwealth, as well as those capturing informal family moments.

A black-and-white portrait by Dorothy Wilding from February 1952, at the start of The Queen's reign, is the earliest photograph in the selection, while the most recent is an image taken at the procession of the Order of the Garter at Windsor in June 2015. Other highlights include Cecil Beaton's 1953 official Coronation Day portrait, Julian Calder's image of The Queen as Sovereign of The Most Ancient and Most Noble Order of The Thistle and Chief of The Chiefs (2010) and a photograph of The Queen with her Highland ponies (2006).

The displays, which are included in a general admission ticket, are being shown until the end of the Summer Opening of Buckingham Palace on 27 September 2015, until 5 January 2016 at the Palace of Holyroodhouse, and until 28 January 2016 at Windsor Castle (the display will move to Castle Hill and the North Terrace on 6 October 2015).

As part of the celebrations, family activities will be held in September at Buckingham Palace, the Palace of Holyroodhouse and Windsor Castle (and are included in the general admission ticket).

The official souvenir album, Long to Reign Over Us, illustrated with over 250 colour photographs, is published by Royal Collection Trust.

The official range of china, inspired by the design of the Coronation programme of 2 June 1953, has been produced exclusively for Royal Collection Trust in Stoke-on-Trent.