Adamson Dudley Advertising was founded in May 1943 in Christchurch. It is unknown whether this slide was shown outside of the South Island or not, but ones like it would have been screened throughout New Zealand.
At the time, taxes were high to enable the New Zealand to keeping fighting in the Second World War, but citizens were urged to spend any disposable income with the war effort. War Bonds went towards the war effort and Patriotic Appeals like this one provided comforts to troops on the front lines, on leave and in prisoner-of-war camps. The funds also helped toward rehabilitating returning service personnel.
Local committees and elected Councils worked on collecting donations in their areas. Raffles were also held to raise money. Those who were judged to have the means to pay received personal letters and visits so if you looked wealthy you could expect some attention!
Adamson Dudley Advertising must have done a good job as company records show them as being registered up until 1995!