BOX DRAWINGS UP SINGLE AND LEFT DOUBLE U+255B

BlockBox Drawing
CategoryOther Symbol
UTF-80xE2 0x95 0x9B
UTF-160xFF 0xFE 0x5B 0x25
UTF-320xFF 0xFE 0x0 0x0 0x5B 0x25 0x0 0x0
HTML╛
Pythonu"\u255B"