The last breakfast
The only things that were not in the soup were distribution coupons, the stamps. So they had taken these for themselves.
During the war there existed ‘distribution’ in the Netherlands, meaning that all sorts of foodstuffs and goods were rationed. To get distribution coupons, one had to possess a so-called “Distribution registration card”, issued by the government. Upon receipt of these coupons, you could during the times announced in the newspapers go to the store in order to buy rationed products. Because everyone had to hand in their coupons at the same time, there were long lines in front of the stores.