Undefined Character (U+100FF)

Block:	Linear B Ideograms, U+10080 - U+100FF^[1]
Plane:	Supplementary Multilingual Plane, U+10000 - U+1FFFF^[1]
HTML Entity:	`𐃿` `𐃿`
UTF-8 Encoding:	`0xF0 0x90 0x83 0xBF`
UTF-16 Encoding:	`0xD800 0xDCFF`
UTF-32 Encoding:	`0x000100FF`

References