The Queen Mother on one of two visits she made to Dounreay
Previously unpublished images of the late Queen Mother visiting the Dounreay nuclear power plant in Caithness have been released on the internet.
The photographs are from visits she made to the site in 1957 and 1961 while she was staying 20 miles away at Castle of Mey.
Dounreay Site Restoration Limited (DSRL) has made the pictures available on its website.
DSRL has been taken over by Babcock International Group.
The move ends the UK Atomic Energy Authority's presence at Dounreay after 55 years and completes the privatisation of its entire workforce at the site.