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Keywords from Image Description:
IRA FCapt h. de Rangabzeichen der Kaiserlisch Russischen Armee KR Zaristischen Armee hier Hauptmann OF Schulterstck Besonderheit Kavallerie Rittmeister Kosakenarmee Jassaul en Rank insignia of the Imperial Russian Army IRA here Captain OF shoulder strap Particularity Cavalry Rittmeister Cossack Army Yesaul ru own