Flag of Uriankhai krai in Russian Empire, that replace Tannu Uriankhai in Qing empire, in use from about 1918 (maybe earlier, from 1914 on?) until 1921
Own work, according to http://www.rbvex.it/tuva.html, using File:Flag of Tannu Tuva (1921-1926).svg
UnknownUnknown , vector image created by User:MS05L