This is three-triangles Senior Sergeant I. M. Ivkov, taken from a January 1937 "Ready For Antiaircraft and Chemical Civil Defense" Badge award booklet (separate thread on badge and book).
His collar insignia branch device is unknown to me-- it is obviously a hollow gear wheel surrounding what appears to be either a WW1 British type tank or VERY fat "angel wings" with what looks like a Red Star in the center. this is NOT a Tank Corps uniform, nor is that a Police cap insignia. Some unknown military or state security branch? Or perhaps a uniformed Soviet "Luftschutz"?
The contrast between cap band and piping and collar tabs and piping suggests two shades of red-- State Security?
His collar insignia branch device is unknown to me-- it is obviously a hollow gear wheel surrounding what appears to be either a WW1 British type tank or VERY fat "angel wings" with what looks like a Red Star in the center. this is NOT a Tank Corps uniform, nor is that a Police cap insignia. Some unknown military or state security branch? Or perhaps a uniformed Soviet "Luftschutz"?
The contrast between cap band and piping and collar tabs and piping suggests two shades of red-- State Security?
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