The Left Square Bracket with Quill symbol (⁅). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Punctuation.
The quickest way is to copy ⁅ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
⁅ is U+2045 (decimal 8261).
Use ⁅ in HTML to render ⁅ on a web page.
On Windows you can type it with Alt+8261 (hold Alt and enter the number on the numeric keypad).
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