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Air Filter from Defence Bunker

1942/1945

Nationaal Comité 4 en 5 mei

Nationaal Comité 4 en 5 mei

A number of machine gun bunkers were built near all the forts forming the Dutch Waterlinie, land that could be flooded as a means of defence. In the event of a gas attack these bunkers could be sealed off airtight.

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