The IPA Unicode character No. 0x027F.
11.5-pt Gentium Book Plus glyph on a 16×16-px canvas, vertically centered on ⟨ʃ⟩.

Sometimes this symbol has a descender, as in File:Ersu word for star.png.
No machine-readable source provided. Own work assumed (based on copyright claims).
No machine-readable author provided. Martin Kozák assumed (based on copyright claims).