trench

Wikidata

https://www.wikidata.org/wiki/Q1852785

The wounded can recuperate peacefully

The wounded can recuperate peacefully (ca. 1937)

Second shooter

Second shooter (1965, December)

Constructive work for protection

Constructive work for protection (1971)

Types of air defense shelters

Types of air defense shelters (ca. 1971)

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