Turned Greek Small Letter Iota may come in handy in case you want to write a text about Eastern culture and Chinese phonetics.

Iota is the ninth letter in the Greek alphabet. The symbol of its rotated version belongs to the [URL /blocks/international-phonetic-alphabet/ International Phonetic Alphabet] and it is considered obsolete and non-standard. Letter Iota is generally used to denote specific Chinese sounds which remind of the Russian Yeru sound [U:044B]. 

If you're looking for the standard Greek iota, check out the following symbols: [U:0196] and [U:03B9].