Undefined Character (U+199C4)

Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𙧄` `𙧄`
UTF-8 Encoding:	`0xF0 0x99 0xA7 0x84`
UTF-16 Encoding:	`0xD826 0xDDC4`
UTF-32 Encoding:	`0x000199C4`

References