Another greatcoat :
This one was sewn for historical parade on Red Square in 1967 - 50 anniversary of Great October Socialist Revolution.
Here are some photos of the "specifications for the uniforms of the NKVD" in 1938 with the extracts on the greatcoat.
Yes this is for NKVD, 6 button type, unfortunately the first picture does not show them all ( under the collar) but this is only for NKVD troops, internal troops of NKVD and field NKVD troops use normal army greatcoats.
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