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It's offered to your attention the broken wire saw of Russian cosmonaut from survival kit NAZ. The abbriviation NAZ stands for Russian 'nosimyi avariynyi zapas' which literally means 'portable emergency reserve'. The contents of the survival kit should be used on Earth as needed after landing of Soyuz spacecraft. Its contents allow cosmonauts to suvive and wait for rescuers team if landed in a harsh, inaccessible environment.
Design features. The wire saw is a thin springy wire about 30 cm long with handle rings at the ends. An even thinner wire is wound in a spiral around the main wire, the protruding turns of which are the “notches” of this wire saw.
Condition - the wire saw is broken due to the corrosion. It's over 3 decades old. Nevertheless it can be displayed for educational purposes, as the part of survival kit of the Soviet cosmonauts. It comes with the fabric bag.
Size: 2x2" (twisted in the fabric bag).
 Made in the USSR.
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Designed for the Soviet space program!
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Reference photo of the survival kit NAZ on display in a space museum where the wire saw is included
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