The intention was to get children to learn to save money and the bank had made blue, red and green piggy banks in the shape of world globes for the cause. The globe can be seen on Hemulen’s desk in the first illustration. You had to deposit 500 marks however to get a globe but it was made out of plastic, which was a fairly new material at the time.
We’re not sure of how this cooperation came to be but a few years before the ads, Tove had created a wall painting at the bank’s main office in Helsinki. Perhaps that’s the connection.