Block: Combining Diacritical Marks Supplement

Range U+1DC0 - U+1DFF
Official Chart http://www.unicode.org/charts/PDF/U1DC0.pdf
Wikipedia Combining Diacritical Marks Supplement is a Unicode block containing combining characters for the Uralic Phonetic Alphabet, Medievalist notations, and German dialectology (Teuthonista). It is an extension of the diacritic characters found in the Combining Diacritical Marks block.
https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_Supplement
Characters
᷿