37mm Soviet HEITSD round 61-K anti-aircraft 37x252mm inert ammo Russian
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Inert 37mm high-explosive incendiary-tracer self-destruct round, used in the 37mm automatic air defense gun M1939 (61-K) by the Soviet Union. This 37x252mm shell casing is made of brass. The projectile is missing the nose fuze. The 37mm automatic air defense gun M1939 (61-K) is a Soviet 37mm calibre anti-aircraft gun developed during the late 1930s and used during WWII.
