RKKA, Red Army enlisted men or command crew pre-1941made leather long boots

RKKA, Red Army enlisted men or command crew pre-WW2 made leather long boots. Later, after the beginning of ww2 this type of boots discontinued to be produced, due a high quality labour and time needed. During war time and post war this kind of boots ("Sapogy" in russian) have been privately ordered by officer's and high NCO's who served in Red Army over the service limit. Very nice condition black leather ( "Khrom" leather) boots, very good soft condition without the leather damage. Just a period re-soiled example. Size 43 or even more.