Queen Elizabeth II, on September 9, beats the record set by her great-great-grandmother Queen Victoria, 63 years and seven months.

In honor of this momentous occasion, Buckingham Palace has released a commemorative photo of the Queen. The picture, which was taken in July by Mary McCartney (the daughter of Paul McCartney and the late Linda McCartney), shows the Queen seated at her desk in her private audience room at Buckingham Palace with one of her official red boxes.

Read More: Yahoo