In this British Pathé video, Princess Margaret and Lord Snowdon are seeing leaving Shannon Airport after visiting relatives in 1961.
The video features various images of Princess Margaret, Anthony Armstrong Jones (Lord Snowdon) and friends milling about on the tarmac, alongside police.
It also features various shots of onlookers on balconies and at windows looking out towards the runway.
Princess Margaret passed away in 2002. After his divorce from Princess Margaret, Lord Snowdon married Lucy Mary Lindsay-Hogg in 1978. Lord Snowdon is aged 85.