The Queen and Harold Wilson 23 Mar 1976
on Number 10
The Prime Minister's Office posted a photo:
Britain's Prime Minister Harold Wilson escorts Queen Elizabeth II into his official residence, No. 10 Downing Street, in London on Tuesday, March 23, 1976. The Queen and Prince Philip were guests at a farewell dinner for Wilson, who had resigned. www.number10.gov.uk/queens-speech-2012