The Queen: Art and Image Exhibition.

Visitors look at 'Lightness of Being'  by Chris LevineVisitors look at ‘Lightness of Being’ by Chris Levine

Multiple portraits of the Queen by Andy Warhol

Multiple portraits of the Queen by Andy Warhol.

The Royal Collection has just purchased an image of The Queen, created by pop-artist Andy Warhol.

A pair of royal portraits were reunited for the first time in more than quarter of a century in a 2012 exhibition about the Queen.

The works by Italian portrait painter Pietro Annigoni went on display at the National Portrait Gallery in London.

It was the first time in 28 years his portrait of the Queen from 1954-5 had gone on public display.

Visitors look at one of the two famous Pietro Annigoni portraits of Her Majesty

..The painting was shown together with Annigoni’s second portrait of the Queen which was commissioned by the gallery in 1969.

Chris Levine poses with his work, Equanimity, a hologram created by himself and holographer Rob Munday

Other artists whose work was on show at The Queen: Art and Image exhibition included Lucian Freud, Gilbert and George, Andy Warhol and Lord Snowdon.

A woman walks past 'Queen Elizabeth II of the United Kingdom' by Andy Warhol

A woman walks past ‘Queen Elizabeth II of the United Kingdom’ by Andy Warhol.

A woman walks past Elizabeth Vs Diana by Kim Dong-Yoo, a portrait of the Queen made using small portraits of Princess Diana

A woman walks past Elizabeth Vs Diana by Kim Dong-Yoo, a portrait of the Queen made using small portraits of Princess Diana.

A man looks at a painting of the Queen  by Lucian Freud

A man looks at a painting of the Queen by Lucian Freud.

Queen Elizabeth ll by Gerhard Richter, 1967

Queen Elizabeth ll by Gerhard Richter, 1967.

Jamie Reid's 'God Save The Queen' is seen near an Annigoni portrait

Jamie Reid’s ‘God Save The Queen’ is seen near an Annigoni portrait.

A man stands near a Pietro Annigoni  portrait of the Queen

Other works on show included Chris Levine’s work, Equanimity, a hologram created by himself and holographer Rob Munday.

A woman takes a photograph of a Lucian Freud portrait,  beside Queen Elizabeth II by Hiroshi Sugimoto, 1999

A woman takes a photograph of a Lucian Freud portrait, beside ‘Queen Elizabeth II’ by Hiroshi Sugimoto, 1999.

A woman photographs a painting by Justin Mortimer entitled 'The Queen'

A woman photographs a painting by Justin Mortimer entitled ‘The Queen’.

A woman looks a Thomas Struth photo of the Queen and the Duke of Edinburgh, flanked by portraits by Annie Leibovitz (left) and Hiroshi Sugimoto (right)

A woman looks a Thomas Struth photo of the Queen and the Duke of Edinburgh, flanked by portraits by Annie Leibovitz (left) and Hiroshi Sugimoto (right).