Soviet pre war or a war time era kubanka fur hat for cossacks of a Voisko Donskoe Войско Донское

Soviet pre-war or a war time era kubanka fur hat for cossacks of a Voisko Donskoe Войско Донское. Extreme rare to find an original example. Used in Red Army as well as by cossacks (volunteers) in German Army.  They just changed Soviet insignia to German eagle badge. Nice, worn condition., no damage.