Answer:
German money was worthless
Step-by-step explanation:
According to the given image, a man is shown using German money as wallpaper. The photo suggest that the German economy and money was worthless.
As a result of the Treaty of Versailles which mandated GERMANY to pay reparation fees to countries it had damaged during the World War after their unconditional surrender, it put their economy into great decline and made their money worthless essentially.