U+A672 "꙲" Combining Cyrillic Thousand Millions Sign Unicode Character

U+A672 "꙲" Combining Cyrillic Thousand Millions Sign is a historic typographic mark used in the Cyrillic script, specifically within the old Slavic numeral system, to denote the value of one thousand million or a billion. It is a combining character, meaning it is designed to be placed above another Cyrillic letter to modify its numeric value by multiplying it by a thousand million, much like other combining numeral signs in the system. This character is part of the Cyrillic Extended-B block and is primarily of interest to scholars and digital typographers working with historical manuscripts or encoding early Cyrillic numeral notations.