Barbed wire obstacles
A barbed wire obstacle in a low moat protected by a bank.
A barbed wire obstacle during the first world war. Leppävaara. (Photo: Ivan Timirjasev, Helsinki City
A bank of the barbed wire obstacle. Pohjois-Haaga. (1998)
Foots of the poles in an old barbed wire obstacle. Some poles are rounded for making
easier to find them from the picture. Länsimäki. (1999)
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