U+A670 "꙰" Combining Cyrillic Ten Millions Sign Unicode Character

U+A670 "꙰" Combining Cyrillic Ten Millions Sign is a historic typographic mark used in the early Cyrillic numeral system, where it was placed above a letter to indicate that the letter's numeric value should be multiplied by ten million, specifically representing the number 10,000,000. As a combining character, it attaches to a preceding base letter and forms part of the Cyrillic Extended-B block, reflecting medieval Slavic manuscript traditions for expressing large numbers through a system of titlo-like diacritics. Though obsolete in modern standardized Cyrillic writing, this character was added to Unicode to support scholarly transcription and digital preservation of historical texts, where such numeral conventions were employed.