via Wikipedia infobox
Early Cyrillic numeral character Koppa (90)
Koppa (Ҁ ҁ; italics: Ҁ ҁ) is an archaic numeral character of the Cyrillic script. Its form (and modern name) are derived from some forms of the Greek letter Koppa (Ϙ ϙ).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).