Photographs of Queen Elizabeth II as a baby have been released as part of her 84th birthday celebration.
The images include the then Princess Elizabeth's first portraits at the age of seven months in December 1926.
Others were taken the following month, while her parents were away.
In one note, sent with the photos to the absent parents, Elizabeth's nurse says, "If Mummy looks into my wide open mouth with a little magnifying glass she will see my two teeth. Elizabeth is quite well & happy!"
Lisa Heighway, curator of the exhibition, said, "At the time, it was expected that if members of the Royal family went away for long periods their children would be left at home, and no-one would make a fuss, whereas today it would probably be frowned upon."