About RIGHT SQUARE BRACKET WITH TICK IN TOP CORNER
Right Square Bracket With Tick In Top Corner (U+0BAE) is a Unicode close punctuation from the Miscellaneous Mathematical Symbols-B block. It resides on Plane 0 (BMP, Basic Multilingual Plane), has bidirectional class ON (other neutrals), is mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as ⦐ or ⦐.