Tresillo
The Tresillo (Ꜫ, lower case ꜫ) is a letter in the Latin writing system . The letter resembles a vertically mirrored number 3 in its appearance. The letter was introduced by Spanish missionaries in Latin America to write the Mayan languages there . The sound that this sign represents is described by the missionaries as "the only true guttural in language that is strongly articulated in the throat and produces a trill" . This sound is known today as the uvular ejective (IPA: / qʼ /).
Presentation on the computer
Unicode contains the tresillo at the code points U + A72A (upper case) and U + A72B (lower case).