61-K 37 mm gun

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  A 37 mm automatic air defense gun M1939 (61-K) used by Viet Minh during Dien Bien Phu Battle to shot down three French aircrafts. In is now shown in Museum of Air Force and Air Defence, Vietnam.

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  Museum of Heroic Defense and Liberation of Sevastopol on Sapun Mountain, Sevastopol

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  Museum of Heroic Defense and Liberation of Sevastopol on Sapun Mountain, Sevastopol

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  61-K in Saint Petersburg Artillery museum, Russia.

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  Israeli Air Force Museum

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  Muzeum Uzbrojenia w Poznaniu

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  Lubuskie Muzeum Wojskowe

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  Lubuskie Muzeum Wojskowe

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  Artillery museum, Saint Petersburg

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