The pictures give an insight into Her Majesty's interior design tastes.
It appears the Queen has kept the library at her Scottish residence very traditionally decorated, with the only updated or modern features being the television and electronic convection heater - which stands in front of the fireplace.
The picture above, taken in 1977 of the Queen and Prince Phillip in the castle's library, proves that not much has changed.
While the younger royal generations have chosen to modernise some aspects of traditional decor, Her Majesty still favours customary royal designs.
The estate in Royal Deeside, Aberdeenshire, has long been the Royal Family’s holiday home, with the Queen still spending her summers there, which is presumably why it has remained with Her Majesty's personal design tastes.