Doug Laurenson talk on wartime music

This features a talk by a member of the wartime Mobile Broadcasting Unit, Doug Laurenson. He gives a general overview of the unit's work in North Africa and makes special mention of the soldier who recorded a message home to his favourite dairy cow.
His talk is interspersed with wartime songs:
[excepts of]
- Wish Me Luck by Gracie Fields
- Māori Battalion
- Lili Marlene by Marlene Dietrich
- A Nightingale Sang in Berkeley Square by Vera Lynn
- We'll Meet Again by Vera Lynn

This recording appears to have been made to mark his retirement from broadcasting. [Exact date unknown 1964?]