Hertsmere Borough Council is looking for people to share their memories of Potters Bar as it celebrates its 40th anniversary.
The authority was formed four decades ago - on April 1, 1974 - with a merger of the Bushey Urban, Potters Bar Urban, the Elstree Rural Districts and the parish of Aldenham.
Council leader Councillor Morris Bright, said: "Our 40th anniversary year provides an excellent opportunity not just for a bit of fun and nostalgia but also to reflect on what has been achieved across Hertsmere during that time.
"The changes in culture, lifestyle and technology have certainly been quite breathtaking and residents who have lived in Hertsmere since 1974 will have seen a huge transition in the ensuing 40 years."
To mark the anniversary, the council would like see any old pictures of the borough from the past 40 years.