Your items have nothing to do with ww2, because they are from Cold War period.
The period between 1947 - 1991 (when communism fell in Eastern Europe, when the Soviet Union collapsed)
You are searching items where Russian military base were based and when they left your country, they left many useless items behind.
But be very carefull, because they may have left some chemical things that may harm your health.
The Cold War was a state of geopolitical tension after World War II between powers in the Eastern Bloc (the Soviet Union and its satellite states) and powers in the Western Bloc (the United States, its NATO allies and others).
The term "cold" is used because there was no large-scale fighting directly between the two sides, but they each supported major regional wars known as proxy wars.