Neutral Territory! Warning marker on the Swiss border during World War II.
Neutral Territory! Warning marker on the Swiss border during World War II. Photo by Theodor Strubin, Museum BL/Keystone (https://www.nzz.ch/english/expert-swiss-sanctions-on-russia-consistent-with-neutrality-ld.1674659).

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Photo by: Theodor Strubin, Museum BL/Keystone |  VIRIN: 230907-D-BD104-1003.JPG