Original Soviet WWII 37mm HE Round for the M1939 Automatic Anti-Aircraft Gun 61-K - Dated 1944 Category_Rear Sight Assembly The iron butt plate is

The iron butt plate is also stamped U

Using bicycles

so they have definitely been in place for quite some time

There are a few small areas of light pitting and wear

We examined the painted name very closely

Original Soviet WWII 37mm HE Round for the M1939 Automatic Anti-Aircraft Gun 61-K - Dated 1944 Category_Rear Sight Assembly The iron butt plate isOriginal Item. Only One Available. The 37mm automatic anti aircraft gun model 1939 (61 K) (GRAU index 52 P 167) was a Soviet anti aircraft gun developed during World War II. It was based on the Swedish 40mm Bofors gun and designed by M. N. Loginov. The 61 K was the first Soviet automatic anti aircraft gun to be produced in large quantities. A family of naval anti aircraft guns was also developed based on the 61 K, and the gun was installed on the