Representing the UK in 1972 were The New Seekers with the song Beg, Steal Or Borrow.
Up against 17 other countries, they were respectable runners-up to Luxembourg's Vicky Leandross, whose song Apres Toi garnered 128 points to the UK's 114.
Here are some highlights from the event in Edinburgh.
1. The New Seekers
Here you can see The New Seekers on the West End of Princes Street, by a sign that points in the direction of the Usher Hall, where the Eurovision song contest took place. The New Seekers were the UK entry in 1972.
2. Hosted by Moira Shearer
Moira Shearer hosted the 1972 contest - she was an internationally renowned British ballet dancer and actress. Shearer is best remembered for her performances in the likes of The Red Shoes (1948) and Peeping Tom (1960).
3. Change of venue
The original host for the 1972 Eurovision contest was meant to be Monaco, however they were unable to meet the demands of hosting the event - the BBC stepped in and the contest was staged in Edinburgh instead.
4. Winning country
Luxembourg won the 1972 contest, with their song Apres toi, sung in French by Vicky Leandros.