![Submerging underwater tanks filled with wheat on Lake Thun, 1939.](https://blog.nationalmuseum.ch/app/uploads/getreide-im-see-titel-300x225.jpg)
Dutti’s submarine provisions
Even before the outbreak of World War II, Migros founder Gottlieb Duttweiler was turning his mind to the issue of securing national supplies of essential goods. But not everyone was sold on his idea of submerging caches of grain and other foodstuffs in our lakes inside mammoth “tin cans”...
![Portrait of Gottlieb Duttweiler, around 1930.](https://blog.nationalmuseum.ch/app/uploads/duttweiler-300x271.jpg)
Experiments on submarine storage in Switzerland’s lakes, 1939 (in German). YouTube / Migros
![Federal Councillor Hermann Obrecht, 1936.](https://blog.nationalmuseum.ch/app/uploads/Hermann-Obrecht-210x300.jpg)
Food was still being stored in Switzerland’s lakes in the 1950s. YouTube / Migros
![Retrieving barrels of foodstuffs from Lake Alpnach in the 1960s.](https://blog.nationalmuseum.ch/app/uploads/thunersee-300x194.jpg)